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nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -3000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: if856853b8e37475992a9cbf16becb03a_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -4000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i6902b9fc279c41d69784269468b1c166_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -5000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i7a2f1b5233ed4484aecab56e9aefb586_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -9000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i16d2e2ad5ab14ce8a1ae980c9b66401a_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -9000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i6531f482d9e744778e1b5aa82a355988_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -11000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: ibbe0714aed4449c0a57717b57ec8ba41_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -18000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: idf33526befa948f2afd279ad01f062f1_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -18000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: ib0c2ac497b61432296c16cfc22b80c09_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -18000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i32f12aee87744f9097ab02acb2abc3bf_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -23000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i52e17b746b754e67ad4238e718fedca6_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -25000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i6f63ca5c3a4b4429940ac74cb61db21b_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -6000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: ie252cd42e1874b9abe006ba6c367800e_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -36000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i9ee898e2671149d9a836b088677fed90_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -42000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: id362e748f5ac4a8689198670788ff5f8_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -2000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: icd21bbdcf53a435bb648f768523ffc48_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -5000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i4664172cbc2c4fdebc2314617b503256_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -7000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i46114dfd0b724a9e9777558f773b11d2_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -7000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i5ddc9244146744e78404b0a657897013_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -14000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i89dc61c125f6478791ceb5651c9a31d7_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -7000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: id02c1300c1a64f7cbf0a50399853a050_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -9000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i5afa2b8516ce45af8886ea48b1e80ba1_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -16000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: ia3a0983f8c024394ac00e9bb2dba38f8_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -7000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: if2d37cdaecdd4d58a0d467f6f338df78_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -3000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i100c7be3a5414706add69f4b8e021382_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -20000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: ia2fa143caee947eea7269dc8da9894c9_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -11000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: id945a9d49ebe4e54b853b7c84a70345a_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -5000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i11dfa2fcb15449f59ffe873f37349af3_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -15000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: if957b9d1335a4eba8f79ae63acdadeed_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -20000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i045dca5b12704c93aa5d7d1446736a0a_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -4000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: ica622e7ca0f0432da2cfafa544f89bfe_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -4000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i1a7f579a91b348d0aa02aa073d2c268a_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -9000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: ib35f54541a124c6bbf897795b0ee4551_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -24000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i44f3a176adfd45559f0824e32cde6b5f_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -15000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: if3095b6e343643bcb39c5eefb07ba0d7_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -15000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: idd2f5d753d0c47e7ad54f22cd1d7485a_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -36000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: idf78566c5fd447f8b4fa5967afebfaae_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -37000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i11fb1c092d944401a52e9e0fa2d1ae7b_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -37000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i758574d7d9794fa79630a7055d17e203_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -10000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i66d959835c1a4c0bb5511e1d55fd90eb_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -10000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i9ab0cb60dabe4df18ad2eaf02e26293b_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -8000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: ieb546c81dfdf4baba0a523a723483364_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -8000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: if6b2aa643e8b4efd93f813dfc220fa08_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -14000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i65251d33795b4090a40290f9262cd65c_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -14000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: ia9b6a6dfd3f34b66b01e11c90c9b6aea_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -43000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i41322eafacb0420a9fa3c54e7eae10b9_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -43000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i4ceeaf07206b4f6fb9ccbd66db7a0125_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -29000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: ia5ab0951a5824e23969742a0e457411a_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -29000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i90301b3a43ed4e7bbd431bfb3c2b0bf1_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -24000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i12a29ccf2e6a497bb317c5f611e3b709_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -11000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i2070952fff34466abc2ffa748bfad5de_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -57000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i9085e84a049340a19ab7fda824f71b2d_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -68000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i524a07cad346471bbf652edcd0cff4e7_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -21000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: if3ab352747254c609648bde50251455a_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -21000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i8423fd5d7ddb42898c0eeb87ba9fac1e_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -27000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: icd7fa11ac55940ccb8f018d5d1af20e9_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -27000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i645236eba3b943f98f213b25cf52c7b4_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -18000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: iffd7f99429794256a4781beda33492b8_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -18000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: iea2a56fa586c4c21ac14dd5db9572eb7_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -36000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i60855878687d43fbbb33403db85ff04c_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -10000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i7db9c27742a64bd1b0ff08b3b1eaadab_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -10000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: ic8db6d25a9244ede808df994371e73cd_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -30000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: ifdab067bff2e49d999358ad76c4b0942_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -30000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: ia3c9cf0d124246628f4317ec1ed3798d_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -16000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: if71a61400f1144a2b5a80d9c28cfa678_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -16000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i535814e6370649ea8d43bba8d91b7413_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -24000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i58ceecbf5e58491f81d8503534c11efc_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -24000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: iabb8f207a72b409ab5be87bf383e9c53_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -37000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i7f6d63efb89446ccabc60848992a52d0_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -55000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i8d11af65f58b41e591c1f37ec8523035_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -169000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i1e5b22cb08ae499ca5eca341148f8c50_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -261000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i93ed1b71e4354d0cbc2d671005fd7eb3_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -9000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: ie5c080aaed28438a809f05df8f7d04be_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -72000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i67f9515b78ab4af39b8ec9f250e32abb_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -81000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i48ad7f8af2a44681bb1c02898641d176_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -1092000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i0db6ea572644498ba00744fa493a58d8_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -44000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i9ee087c2a1ef4be1aad6b7aa1dbfe0f9_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -44000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: ifbda5199f47c493bbcd2b6d835d5e2db_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -1136000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: ib1e0871c5a7342a2ac9dcb2d08625177_I20220930, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -2000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i024f6f98ec2744ee9cc815fa5fecc89e_I20211231, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -2000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i6df66e2a612f4cf8a11660b5a3a139cc_I20211231, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -3000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i138f1872cfab449a957b1755e8356192_I20211231, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -5000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: ic9366682e0eb46c28e07e862aa515680_I20211231, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -5000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i1b53d97ffaf74ca1bc5befd6d2aa2905_I20211231, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -9000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i887faad4ddb143949d1fb7e2deca297c_I20211231, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -9000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: ic400118fb35d42ffa1faea7e645a9ad1_I20211231, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -10000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: ie023120cdf5c4abaa167ac30a85eb183_I20211231, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -10000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i8c272768ceff4945ba2993686a938667_I20211231, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -10000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i1ac3c65cea654a3c9a1cad95351e11c8_I20211231, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -6000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: id9b727350c254a02b460c253b54f944d_I20211231, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -6000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i4e05fe7238284d95aef1cd85478ff049_I20211231, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -12000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i26106ace739b42108231bf011792c8b4_I20211231, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -18000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i97054f5da8ad493ea65c66523d9c42fc_I20211231, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -19000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: ibb9c4f4f95814bf4b9d9e0815f89b899_I20211231, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -20000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: iccf0383d84ac4c98acdaf109735d53f8_I20211231, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -20000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i92898776684b4377a1d4d23f832e790f_I20211231, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -25000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: i8ecb308cc7734181998ac9ab679defa1_I20211231, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -30000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: icdbefbdfb2884246859dd12976aa3383_I20211231, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -30000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: iefa328ad4a264ad096d4a56441ad4fea_I20211231, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 [dqc-0015-Negative-Values] Fact us-gaap:InvestmentOwnedAtCost has a value of -19000 which is less than zero. This element should not have a negative value. The preparer should consider if the value is input correctly for this assertion and, after considering the appropriateness of the input, if incorrect, input the amount as a positive (i.e., absolute) value and provide a negated label. The properties of this us-gaap:InvestmentOwnedAtCost fact are: Context: ibf17e4dea53d494291929d702133123d_I20211231, Unit: usd, Rule Element Id: 1442. nmfc-20220930.htm 4 There are more than 100 warnings or errors, only 100 will be displayed. nmfc-20220930.htm nmfc-093022xex311.htm nmfc-093022xex312.htm nmfc-093022xex321.htm nmfc-093022xex322.htm nmfc-20220930.xsd nmfc-20220930_cal.xml nmfc-20220930_def.xml nmfc-20220930_lab.xml nmfc-20220930_pre.xml nmfc-20220930_g1.jpg http://fasb.org/us-gaap-sup/2022q3 http://fasb.org/us-gaap/2022 http://xbrl.sec.gov/cef/2022 http://xbrl.sec.gov/dei/2022 true true