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Loans - Loans Held-for-Investment by Performing and Non-Performing Loans (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net $ 3,213,689 $ 2,987,067
Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 3,197,089 2,968,346
Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 14,069 15,871
Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 2,531 2,850
Real Estate | One-to-Four Family | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 55,838 55,060
Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 28,351 30,295
Real Estate | One-to-Four Family | Pass | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 53,521 52,886
Real Estate | One-to-Four Family | Pass | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 28,326 29,967
Real Estate | One-to-Four Family | Substandard | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 1,727 1,397
Real Estate | One-to-Four Family | Substandard | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 25 328
Real Estate | One-to-Four Family | Special Mention | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 590 777
Real Estate | One-to-Four Family | Special Mention | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 0 0
Real Estate | Construction and Land    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 46,843 38,303
Real Estate | Construction and Land | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 46,843 38,303
Real Estate | Construction and Land | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 0 0
Real Estate | Construction and Land | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 0 0
Real Estate | Multifamily | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 248,705 233,251
Real Estate | Multifamily | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 2,055,461 1,966,483
Real Estate | Multifamily | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 248,120 232,950
Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 2,049,444 1,960,984
Real Estate | Multifamily | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 585 301
Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 5,257 5,203
Real Estate | Multifamily | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 0 0
Real Estate | Multifamily | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 760 296
Real Estate | Home equity and lines of credit    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 90,110 86,848
Real Estate | Home equity and lines of credit | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 89,749 86,547
Real Estate | Home equity and lines of credit | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 285 287
Real Estate | Home equity and lines of credit | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 76 14
Commercial and Industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 149,725 45,456
Commercial and Industrial | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 149,391 45,075
Commercial and Industrial | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 37 80
Commercial and Industrial | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 297 301
Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 2,411 2,084
Other | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 2,411 2,084
Other | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 0 0
Other | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 0 0
Non-Performing Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 8,806 9,433
Non-Performing Loans 9,784 9,951
Loans Held For Investment    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 3,213,689 2,987,067
Loans Held For Investment | Real Estate | Commercial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 536,245 529,287
Loans Held For Investment | Real Estate | Commercial | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 90,805 79,855
Loans Held For Investment | Real Estate | Commercial | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 445,440 449,432
Loans Held For Investment | Real Estate | Commercial | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 90,805 79,485
Loans Held For Investment | Real Estate | Commercial | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 438,479 440,065
Loans Held For Investment | Real Estate | Commercial | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 6,153 8,275
Loans Held For Investment | Real Estate | Commercial | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net   370
Loans Held For Investment | Real Estate | Commercial | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 808 1,092
Loans Held For Investment | Real Estate | One-to-Four Family    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 84,189 85,355
Loans Held For Investment | Real Estate | One-to-Four Family | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 55,838 55,060
Loans Held For Investment | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 28,351 30,295
Loans Held For Investment | Real Estate | One-to-Four Family | Pass | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 53,521 52,886
Loans Held For Investment | Real Estate | One-to-Four Family | Pass | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 28,326 29,967
Loans Held For Investment | Real Estate | One-to-Four Family | Substandard | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 1,727 1,397
Loans Held For Investment | Real Estate | One-to-Four Family | Substandard | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 25 328
Loans Held For Investment | Real Estate | One-to-Four Family | Special Mention | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 590 777
Loans Held For Investment | Real Estate | Construction and Land    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 46,843 38,303
Loans Held For Investment | Real Estate | Construction and Land | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 46,843 38,303
Loans Held For Investment | Real Estate | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 2,304,166 2,199,734
Loans Held For Investment | Real Estate | Multifamily | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 248,705 233,251
Loans Held For Investment | Real Estate | Multifamily | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 2,055,461 1,966,483
Loans Held For Investment | Real Estate | Multifamily | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 248,120 232,950
Loans Held For Investment | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 2,049,444 1,960,984
Loans Held For Investment | Real Estate | Multifamily | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 585 301
Loans Held For Investment | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 5,257 5,203
Loans Held For Investment | Real Estate | Multifamily | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 760 296
Loans Held For Investment | Real Estate | Home equity and lines of credit    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 90,110 86,848
Loans Held For Investment | Real Estate | Home equity and lines of credit | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 89,749 86,547
Loans Held For Investment | Real Estate | Home equity and lines of credit | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 285 287
Loans Held For Investment | Real Estate | Home equity and lines of credit | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 76 14
Loans Held For Investment | Commercial and Industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 149,725 45,456
Loans Held For Investment | Commercial and Industrial | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 149,391 45,075
Loans Held For Investment | Commercial and Industrial | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 37 80
Loans Held For Investment | Commercial and Industrial | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 297 301
Loans Held For Investment | Other | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net   2,084
Loans Held For Investment | Other | Other loans | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 2,411  
Loans Held For Investment | Performing (Accruing) Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 3,211,031 2,983,859
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 535,301 526,871
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 90,805 79,855
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 444,496 447,016
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 90,805 79,485
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 438,479 440,065
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 5,209 5,859
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans   370
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 808 1,092
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 83,511 84,719
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 55,185 54,453
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 28,326 30,266
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Pass | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 53,521 52,886
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Pass | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 28,326 29,967
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Substandard | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 1,074 790
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Substandard | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 299
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Special Mention | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 590 777
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Construction and Land    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 46,843 38,303
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Construction and Land | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 46,843 38,303
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,303,383 2,199,734
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 248,414 233,251
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,054,969 1,966,483
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 248,120 232,950
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,049,444 1,960,984
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 294 301
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 4,765 5,203
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 760 296
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 89,857 86,692
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 89,749 86,547
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 32 131
Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 76 14
Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 149,725 45,456
Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 149,391 45,075
Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 37 80
Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 297 301
Loans Held For Investment | Performing (Accruing) Loans | Other | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans   2,084
Loans Held For Investment | Performing (Accruing) Loans | Other | Other loans | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,411  
Loans Held For Investment | Non-Performing Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 2,658 3,208
Loans Held For Investment | Non-Performing Loans | Real Estate | Commercial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 944 2,416
Loans Held For Investment | Non-Performing Loans | Real Estate | Commercial | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans Held For Investment | Non-Performing Loans | Real Estate | Commercial | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 944 2,416
Loans Held For Investment | Non-Performing Loans | Real Estate | Commercial | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans Held For Investment | Non-Performing Loans | Real Estate | Commercial | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans Held For Investment | Non-Performing Loans | Real Estate | Commercial | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 944 2,416
Loans Held For Investment | Non-Performing Loans | Real Estate | Commercial | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans   0
Loans Held For Investment | Non-Performing Loans | Real Estate | Commercial | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans Held For Investment | Non-Performing Loans | Real Estate | One-to-Four Family    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 678 636
Loans Held For Investment | Non-Performing Loans | Real Estate | One-to-Four Family | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 653 607
Loans Held For Investment | Non-Performing Loans | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 25 29
Loans Held For Investment | Non-Performing Loans | Real Estate | One-to-Four Family | Pass | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans Held For Investment | Non-Performing Loans | Real Estate | One-to-Four Family | Pass | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans Held For Investment | Non-Performing Loans | Real Estate | One-to-Four Family | Substandard | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 653 607
Loans Held For Investment | Non-Performing Loans | Real Estate | One-to-Four Family | Substandard | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 25 29
Loans Held For Investment | Non-Performing Loans | Real Estate | One-to-Four Family | Special Mention | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans Held For Investment | Non-Performing Loans | Real Estate | Construction and Land    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans Held For Investment | Non-Performing Loans | Real Estate | Construction and Land | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans Held For Investment | Non-Performing Loans | Real Estate | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 783 0
Loans Held For Investment | Non-Performing Loans | Real Estate | Multifamily | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 291 0
Loans Held For Investment | Non-Performing Loans | Real Estate | Multifamily | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 492 0
Loans Held For Investment | Non-Performing Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans Held For Investment | Non-Performing Loans | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans Held For Investment | Non-Performing Loans | Real Estate | Multifamily | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 291 0
Loans Held For Investment | Non-Performing Loans | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 492 0
Loans Held For Investment | Non-Performing Loans | Real Estate | Multifamily | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans Held For Investment | Non-Performing Loans | Real Estate | Home equity and lines of credit    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 253 156
Loans Held For Investment | Non-Performing Loans | Real Estate | Home equity and lines of credit | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans Held For Investment | Non-Performing Loans | Real Estate | Home equity and lines of credit | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 253 156
Loans Held For Investment | Non-Performing Loans | Real Estate | Home equity and lines of credit | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans Held For Investment | Non-Performing Loans | Commercial and Industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans Held For Investment | Non-Performing Loans | Commercial and Industrial | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans Held For Investment | Non-Performing Loans | Commercial and Industrial | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans Held For Investment | Non-Performing Loans | Commercial and Industrial | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans Held For Investment | Non-Performing Loans | Other | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans   0
Loans Held For Investment | Non-Performing Loans | Other | Other loans | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans  
Loans acquired    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 360,895 432,653
Loans acquired | Real Estate | Commercial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 98,281 113,027
Loans acquired | Real Estate | Commercial | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 33,939 37,351
Loans acquired | Real Estate | Commercial | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 64,342 75,676
Loans acquired | Real Estate | Commercial | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 32,999 35,460
Loans acquired | Real Estate | Commercial | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 49,705 60,311
Loans acquired | Real Estate | Commercial | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 857 703
Loans acquired | Real Estate | Commercial | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 14,301 14,767
Loans acquired | Real Estate | Commercial | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 83 1,188
Loans acquired | Real Estate | Commercial | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 336 598
Loans acquired | Real Estate | One-to-Four Family    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 147,179 187,975
Loans acquired | Real Estate | One-to-Four Family | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 134,507 173,766
Loans acquired | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 12,672 14,209
Loans acquired | Real Estate | One-to-Four Family | Pass | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 133,908 172,955
Loans acquired | Real Estate | One-to-Four Family | Pass | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 12,579 14,116
Loans acquired | Real Estate | One-to-Four Family | Substandard | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 221 426
Loans acquired | Real Estate | One-to-Four Family | Substandard | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 93 93
Loans acquired | Real Estate | One-to-Four Family | Special Mention | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 378 385
Loans acquired | Real Estate | Construction and Land    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 1,475 2,537
Loans acquired | Real Estate | Construction and Land | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 1,475 2,537
Loans acquired | Real Estate | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 95,835 108,417
Loans acquired | Real Estate | Multifamily | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 92,834 105,367
Loans acquired | Real Estate | Multifamily | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 3,001 3,050
Loans acquired | Real Estate | Multifamily | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 92,794 105,327
Loans acquired | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 2,609 2,653
Loans acquired | Real Estate | Multifamily | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 40 40
Loans acquired | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 392 397
Loans acquired | Real Estate | Home equity and lines of credit    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 10,091 12,008
Loans acquired | Real Estate | Home equity and lines of credit | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 9,875 11,892
Loans acquired | Real Estate | Home equity and lines of credit | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 170 116
Loans acquired | Real Estate | Home equity and lines of credit | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 46  
Loans acquired | Commercial and Industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 8,034 8,689
Loans acquired | Commercial and Industrial | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 7,995 8,689
Loans acquired | Commercial and Industrial | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 39  
Loans acquired | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net   0
Loans acquired | Performing (Accruing) Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 353,769 425,910
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 92,137 107,268
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 33,673 37,017
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 58,464 70,251
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 32,999 35,460
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 49,705 60,311
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 591 369
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 8,423 9,342
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 83 1,188
Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 336 598
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 146,710 187,456
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 134,131 173,340
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 12,579 14,116
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Pass | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 133,753 172,955
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Pass | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 12,579 14,116
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Substandard | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Substandard | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Special Mention | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 378 385
Loans acquired | Performing (Accruing) Loans | Real Estate | Construction and Land    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 1,475 2,537
Loans acquired | Performing (Accruing) Loans | Real Estate | Construction and Land | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 1,475 2,537
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 95,403 107,980
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 92,794 105,327
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,609 2,653
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 92,794 105,327
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,609 2,653
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 10,049 11,980
Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 9,875 11,892
Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 128 88
Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 46  
Loans acquired | Performing (Accruing) Loans | Commercial and Industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 7,995 8,689
Loans acquired | Performing (Accruing) Loans | Commercial and Industrial | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 7,995 8,689
Loans acquired | Performing (Accruing) Loans | Commercial and Industrial | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0  
Loans acquired | Performing (Accruing) Loans | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans   0
Loans acquired | Non-Performing Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 7,126 6,743
Loans acquired | Non-Performing Loans | Real Estate | Commercial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 6,144 5,759
Loans acquired | Non-Performing Loans | Real Estate | Commercial | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 266 334
Loans acquired | Non-Performing Loans | Real Estate | Commercial | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 5,878 5,425
Loans acquired | Non-Performing Loans | Real Estate | Commercial | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired | Non-Performing Loans | Real Estate | Commercial | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired | Non-Performing Loans | Real Estate | Commercial | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 266 334
Loans acquired | Non-Performing Loans | Real Estate | Commercial | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 5,878 5,425
Loans acquired | Non-Performing Loans | Real Estate | Commercial | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired | Non-Performing Loans | Real Estate | Commercial | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired | Non-Performing Loans | Real Estate | One-to-Four Family    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 469 519
Loans acquired | Non-Performing Loans | Real Estate | One-to-Four Family | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 376 426
Loans acquired | Non-Performing Loans | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 93 93
Loans acquired | Non-Performing Loans | Real Estate | One-to-Four Family | Pass | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 155 0
Loans acquired | Non-Performing Loans | Real Estate | One-to-Four Family | Pass | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired | Non-Performing Loans | Real Estate | One-to-Four Family | Substandard | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 221 426
Loans acquired | Non-Performing Loans | Real Estate | One-to-Four Family | Substandard | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 93 93
Loans acquired | Non-Performing Loans | Real Estate | One-to-Four Family | Special Mention | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired | Non-Performing Loans | Real Estate | Construction and Land    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired | Non-Performing Loans | Real Estate | Construction and Land | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired | Non-Performing Loans | Real Estate | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 432 437
Loans acquired | Non-Performing Loans | Real Estate | Multifamily | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 40 40
Loans acquired | Non-Performing Loans | Real Estate | Multifamily | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 392 397
Loans acquired | Non-Performing Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired | Non-Performing Loans | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired | Non-Performing Loans | Real Estate | Multifamily | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 40 40
Loans acquired | Non-Performing Loans | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 392 397
Loans acquired | Non-Performing Loans | Real Estate | Home equity and lines of credit    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 42 28
Loans acquired | Non-Performing Loans | Real Estate | Home equity and lines of credit | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired | Non-Performing Loans | Real Estate | Home equity and lines of credit | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 42 28
Loans acquired | Non-Performing Loans | Real Estate | Home equity and lines of credit | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0  
Loans acquired | Non-Performing Loans | Commercial and Industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 39 0
Loans acquired | Non-Performing Loans | Commercial and Industrial | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 0 0
Loans acquired | Non-Performing Loans | Commercial and Industrial | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 39  
Loans acquired | Non-Performing Loans | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans   0
Total Loans Include Loans Acquired    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total Loans Receivable, net 3,574,584 3,419,720
Total Loans Include Loans Acquired | Performing (Accruing) Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 3,564,800 3,409,769
Total Loans Include Loans Acquired | Non-Performing Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Non-Performing Loans 9,784 9,951
0-29 Days Past Due | Non-Performing Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 3,400 3,839
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 3,198,532 2,980,106
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 524,805 525,326
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 88,671 79,753
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 436,134 445,573
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 88,671 79,383
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 430,117 439,253
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 5,209 5,228
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans   370
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 808 1,092
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 82,557 83,587
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 54,231 53,547
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 28,326 30,040
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Pass | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 53,077 52,757
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Pass | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 28,326 29,741
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Substandard | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 1,074 790
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Substandard | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 299
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Special Mention | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 80 0
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Construction and Land    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 46,645 38,156
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Construction and Land | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 46,645 38,156
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,303,308 2,199,187
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 248,414 232,959
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,054,894 1,966,228
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 248,120 232,658
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,049,444 1,960,729
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 294 301
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 4,690 5,203
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 760 296
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 89,563 86,525
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 89,455 86,380
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 32 131
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 76 14
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 149,243 45,267
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 148,939 44,886
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 37 80
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 267 301
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Other | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans   2,058
0-29 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Other | Other loans | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,411  
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 350,164 421,457
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 90,200 103,363
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 33,673 36,536
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 56,527 66,827
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 32,999 35,173
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 49,705 60,311
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 591 369
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 6,822 6,382
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 83 994
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 134
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 145,498 186,998
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 132,919 172,882
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 12,579 14,116
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Pass | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 132,919 172,882
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Pass | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 12,579 14,116
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Substandard | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Substandard | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Special Mention | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Construction and Land    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 1,475 2,537
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Construction and Land | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 1,475 2,537
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 95,403 107,980
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 92,794 105,327
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,609 2,653
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 92,794 105,327
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,609 2,653
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 9,593 11,930
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 9,467 11,842
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 80 88
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 46  
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Commercial and Industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 7,995 8,649
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Commercial and Industrial | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 7,995 8,649
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Commercial and Industrial | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0  
0-29 Days Past Due | Loans acquired | Performing (Accruing) Loans | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans   0
0-29 Days Past Due | Total Loans Include Loans Acquired | Performing (Accruing) Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 3,548,696 3,401,563
30-89 Days Past Due | Non-Performing Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 1,917 493
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 12,499 3,753
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 10,496 1,545
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,134 102
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 8,362 1,443
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 2,134 102
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 8,362 812
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 631
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans   0
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Commercial | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 954 1,132
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 954 906
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 226
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Pass | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 444 129
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Pass | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 226
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Substandard | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Substandard | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Special Mention | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 510 777
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Construction and Land    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 198 147
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Construction and Land | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 198 147
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 75 547
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 292
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 75 255
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 292
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 255
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 75 0
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Multifamily | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 294 167
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 294 167
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 482 189
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 452 189
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Commercial and Industrial | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 30 0
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Other | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans   26
30-89 Days Past Due | Loans Held For Investment | Performing (Accruing) Loans | Other | Other loans | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0  
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 3,605 4,453
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 1,937 3,905
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 481
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 1,937 3,424
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 287
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 1,601 2,960
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Special Mention | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 194
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Commercial | Special Mention | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 336 464
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 1,212 458
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 1,212 458
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Pass | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 834 73
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Pass | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Substandard | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Substandard | Equal to or Greater than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | One-to-Four Family | Special Mention | Less Than 60% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 378 385
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Construction and Land    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Construction and Land | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Pass | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Less Than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Multifamily | Substandard | Equal to or Greater than 35% LTV    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 456 50
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 408 50
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 48 0
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Real Estate | Home equity and lines of credit | Special Mention    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0  
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Commercial and Industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 40
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Commercial and Industrial | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0 40
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Commercial and Industrial | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans 0  
30-89 Days Past Due | Loans acquired | Performing (Accruing) Loans | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans   0
30-89 Days Past Due | Total Loans Include Loans Acquired | Performing (Accruing) Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Performing (Accruing) Loans $ 16,104 $ 8,206