Loans Receivable: Financing Receivables, Aging of loans (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total $ 1,258 $ 4,447
Current 696,158 672,586
Total Loans [1],[2] 697,416 [3] 677,033 [4]
One-to-four family, residential, owner occupied    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 1,161 1,907
Current 146,068 159,106
Total Loans 147,229 [2],[3] 161,013 [1],[4]
One-to-four family residential non-owner occupied    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 0 164
Current 106,543 112,388
Total Loans 106,543 [2],[3] 112,552 [1],[4]
Multifamily    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 0 1,965
Current 133,388 118,306
Total Loans 133,388 [2],[3] 120,271 [1],[4]
Commercial Real Estate    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 0 336
Current 252,501 247,632
Total Loans 252,501 [2],[3] 247,968 [1],[4]
Construction Land Development    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 0 0
Current 43,172 24,316
Total Loans 43,172 [2],[3] 24,316 [1],[4]
Real Estate, Total    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 1,161 4,372
Current 681,672 661,748
Total Loans 682,833 [2],[3] 666,120 [1],[4]
Business    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 0 0
Current 7,604 3,783
Total Loans 7,604 [2],[3] 3,783 [1],[4]
Consumer    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 97 75
Current 6,882 7,055
Total Loans 6,979 [2],[3] 7,130 [1],[4]
Financing Receivables, 30 to 59 Days Past Due [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 678 2,631
Financing Receivables, 30 to 59 Days Past Due [Member] | One-to-four family, residential, owner occupied    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 678 666
Financing Receivables, 30 to 59 Days Past Due [Member] | One-to-four family residential non-owner occupied    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 0 0
Financing Receivables, 30 to 59 Days Past Due [Member] | Multifamily    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 0 1,965
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial Real Estate    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 0 0
Financing Receivables, 30 to 59 Days Past Due [Member] | Construction Land Development    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 0 0
Financing Receivables, 30 to 59 Days Past Due [Member] | Real Estate, Total    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 678 2,631
Financing Receivables, 30 to 59 Days Past Due [Member] | Business    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 0 0
Financing Receivables, 30 to 59 Days Past Due [Member] | Consumer    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 0 0
Financing Receivables, 60 to 89 Days Past Due [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 561 975
Financing Receivables, 60 to 89 Days Past Due [Member] | One-to-four family, residential, owner occupied    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 483 575
Financing Receivables, 60 to 89 Days Past Due [Member] | One-to-four family residential non-owner occupied    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 0 0
Financing Receivables, 60 to 89 Days Past Due [Member] | Multifamily    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 0 0
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial Real Estate    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 0 325
Financing Receivables, 60 to 89 Days Past Due [Member] | Construction Land Development    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 0 0
Financing Receivables, 60 to 89 Days Past Due [Member] | Real Estate, Total    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 483 900
Financing Receivables, 60 to 89 Days Past Due [Member] | Business    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 0 0
Financing Receivables, 60 to 89 Days Past Due [Member] | Consumer    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 78 75
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 19 841
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | One-to-four family, residential, owner occupied    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 0 666
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | One-to-four family residential non-owner occupied    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 0 164
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Multifamily    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 0 0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial Real Estate    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 0 11
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Construction Land Development    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 0 0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Real Estate, Total    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 0 841
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Business    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total 0 0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Consumer    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Total $ 19 $ 0
[1] Net of LIP.
[2] {F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOjRjYzNlNDk4ODZiNjRhMmM4ZjM0YjEwODBmYzY5MzczfFRleHRTZWxlY3Rpb246MkI3REU1RDdFMTMyOTQ0NTNGQjAxNDYyMjIzQzk0OTQM}
[3] {F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOjRjYzNlNDk4ODZiNjRhMmM4ZjM0YjEwODBmYzY5MzczfFRleHRTZWxlY3Rpb246QjdCNDk3QjgwRjA0MzgyMjU1RTgxNDYyMjIzQzU2MzcM}
[4] {F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOjRjYzNlNDk4ODZiNjRhMmM4ZjM0YjEwODBmYzY5MzczfFRleHRTZWxlY3Rpb246MEM3RjMyMzY4MkVENTBBMzJEQjUxNDYyMjIzQzM1ODgM}