Fair Value Measurements - Fair value on a recurring and nonrecurring basis (Details) - USD ($)
$ in Thousands |
Sep. 30, 2020 |
Dec. 31, 2019 |
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
$ 79,712
|
$ 58,417
|
| Real estate held for sale |
99
|
135
|
| Agency MBS |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
7,378
|
9,770
|
| Agency CMO |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
16,254
|
10,712
|
| Municipal obligations |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
56,080
|
37,935
|
| Level 1 |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
0
|
0
|
| Level 2 |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
79,712
|
58,417
|
| Level 3 |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
0
|
0
|
| Assets Measured on a Recurring Basis |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
79,712
|
58,417
|
| Assets Measured on a Recurring Basis | Agency MBS |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
7,378
|
9,770
|
| Assets Measured on a Recurring Basis | Agency CMO |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
16,254
|
10,712
|
| Assets Measured on a Recurring Basis | Municipal obligations |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
56,080
|
37,935
|
| Assets Measured on a Recurring Basis | Level 1 |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
0
|
0
|
| Assets Measured on a Recurring Basis | Level 1 | Agency MBS |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
0
|
0
|
| Assets Measured on a Recurring Basis | Level 1 | Agency CMO |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
0
|
0
|
| Assets Measured on a Recurring Basis | Level 1 | Municipal obligations |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
0
|
0
|
| Assets Measured on a Recurring Basis | Level 2 |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
79,712
|
58,417
|
| Assets Measured on a Recurring Basis | Level 2 | Agency MBS |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
7,378
|
9,770
|
| Assets Measured on a Recurring Basis | Level 2 | Agency CMO |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
16,254
|
10,712
|
| Assets Measured on a Recurring Basis | Level 2 | Municipal obligations |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
56,080
|
37,935
|
| Assets Measured on a Recurring Basis | Level 3 |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
0
|
0
|
| Assets Measured on a Recurring Basis | Level 3 | Agency MBS |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
0
|
0
|
| Assets Measured on a Recurring Basis | Level 3 | Agency CMO |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
0
|
0
|
| Assets Measured on a Recurring Basis | Level 3 | Municipal obligations |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
0
|
0
|
| Assets Measured on a Nonrecurring Basis |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total impaired loans |
2,426
|
2,365
|
| Real estate held for sale |
99
|
135
|
| Assets Measured on a Nonrecurring Basis | Residential real estate | One-to-four family residential |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total impaired loans |
1,473
|
1,406
|
| Assets Measured on a Nonrecurring Basis | Commercial Real Estate |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total impaired loans |
585
|
581
|
| Assets Measured on a Nonrecurring Basis | Commercial business |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total impaired loans |
368
|
378
|
| Assets Measured on a Nonrecurring Basis | Level 1 |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total impaired loans |
0
|
0
|
| Real estate held for sale |
0
|
0
|
| Assets Measured on a Nonrecurring Basis | Level 1 | Residential real estate | One-to-four family residential |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total impaired loans |
0
|
0
|
| Assets Measured on a Nonrecurring Basis | Level 1 | Commercial Real Estate |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total impaired loans |
0
|
0
|
| Assets Measured on a Nonrecurring Basis | Level 1 | Commercial business |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total impaired loans |
0
|
0
|
| Assets Measured on a Nonrecurring Basis | Level 2 |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total impaired loans |
0
|
0
|
| Real estate held for sale |
0
|
0
|
| Assets Measured on a Nonrecurring Basis | Level 2 | Residential real estate | One-to-four family residential |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total impaired loans |
0
|
0
|
| Assets Measured on a Nonrecurring Basis | Level 2 | Commercial Real Estate |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total impaired loans |
0
|
0
|
| Assets Measured on a Nonrecurring Basis | Level 2 | Commercial business |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total impaired loans |
0
|
0
|
| Assets Measured on a Nonrecurring Basis | Level 3 |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total impaired loans |
2,426
|
2,365
|
| Real estate held for sale |
99
|
135
|
| Assets Measured on a Nonrecurring Basis | Level 3 | Residential real estate | One-to-four family residential |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total impaired loans |
1,473
|
1,406
|
| Assets Measured on a Nonrecurring Basis | Level 3 | Commercial Real Estate |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total impaired loans |
585
|
581
|
| Assets Measured on a Nonrecurring Basis | Level 3 | Commercial business |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total impaired loans |
$ 368
|
$ 378
|