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Loans Receivable - Nonaccrual Loans (Details) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Gross nonaccrual loans $ 25,894,000   $ 25,894,000   $ 58,092,000
Financing Receivable, Nonaccrual, No Allowance 11,984,000   11,984,000   30,826,000
Financing Receivable, Nonaccrual, with Allowance 13,910,000   13,910,000   27,266,000
Financing Receivable, Originated in Current Fiscal Year 707,514,000   707,514,000   1,279,419,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 534,071,000   534,071,000   804,177,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 730,553,000   730,553,000   460,216,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 380,834,000   380,834,000   381,636,000
Interest and Fee Income, Loans and Leases 46,863,000 $ 47,647,000 147,137,000 $ 142,328,000  
Pass          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 705,925,000   705,925,000   1,255,971,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 520,418,000   520,418,000   774,796,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 708,892,000   708,892,000   424,758,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 352,403,000   352,403,000   344,485,000
Special Mention          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 532,000   532,000   20,643,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 10,836,000   10,836,000   16,692,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 15,443,000   15,443,000   27,621,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 19,400,000   19,400,000   17,850,000
Substandard          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 1,057,000   1,057,000   2,805,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 2,817,000   2,817,000   12,689,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 6,218,000   6,218,000   7,837,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 9,031,000   9,031,000   19,301,000
Commercial Portfolio Segment          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Gross nonaccrual loans 25,243,000   25,243,000   56,786,000
Financing Receivable, Nonaccrual, No Allowance 11,984,000   11,984,000   30,156,000
Financing Receivable, Nonaccrual, with Allowance 13,259,000   13,259,000   26,630,000
Financing Receivable, Originated in Current Fiscal Year 570,553,000   570,553,000   1,143,639,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 408,983,000   408,983,000   495,683,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 525,700,000   525,700,000   349,200,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 330,727,000   330,727,000   331,325,000
Commercial Portfolio Segment | Pass          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 568,964,000   568,964,000   1,120,864,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 396,087,000   396,087,000   468,167,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 505,174,000   505,174,000   314,426,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 302,845,000   302,845,000   296,807,000
Commercial Portfolio Segment | Special Mention          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 532,000   532,000   20,576,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 10,836,000   10,836,000   15,681,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 14,993,000   14,993,000   27,621,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 19,400,000   19,400,000   17,850,000
Commercial Portfolio Segment | Substandard          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 1,057,000   1,057,000   2,199,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 2,060,000   2,060,000   11,835,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 5,533,000   5,533,000   7,153,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 8,482,000   8,482,000   16,668,000
Commercial Portfolio Segment | Commercial and Industrial          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Gross nonaccrual loans 10,965,000   10,965,000   31,247,000
Financing Receivable, Nonaccrual, No Allowance 6,952,000   6,952,000   22,039,000
Financing Receivable, Nonaccrual, with Allowance 4,013,000   4,013,000   9,208,000
Financing Receivable, Originated in Current Fiscal Year 76,242,000   76,242,000   135,600,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 109,475,000   109,475,000   148,916,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 115,156,000   115,156,000   85,060,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 63,414,000   63,414,000   57,750,000
Commercial Portfolio Segment | Commercial and Industrial | Pass          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 74,653,000   74,653,000   118,971,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 107,406,000   107,406,000   127,919,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 103,431,000   103,431,000   70,766,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 55,513,000   55,513,000   44,231,000
Commercial Portfolio Segment | Commercial and Industrial | Special Mention          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 532,000   532,000   14,430,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 700,000   700,000   9,162,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 6,192,000   6,192,000   10,878,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 6,682,000   6,682,000   4,171,000
Commercial Portfolio Segment | Commercial and Industrial | Substandard          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 1,057,000   1,057,000   2,199,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 1,369,000   1,369,000   11,835,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 5,533,000   5,533,000   3,416,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 1,219,000   1,219,000   9,348,000
Commercial Portfolio Segment | Owner Occupied Commercial Real Estate          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Gross nonaccrual loans 9,500,000   9,500,000   18,393,000
Financing Receivable, Nonaccrual, No Allowance 3,714,000   3,714,000   4,693,000
Financing Receivable, Nonaccrual, with Allowance 5,786,000   5,786,000   13,700,000
Financing Receivable, Originated in Current Fiscal Year 114,176,000   114,176,000   95,370,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 91,797,000   91,797,000   171,635,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 186,626,000   186,626,000   111,330,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 108,370,000   108,370,000   98,689,000
Commercial Portfolio Segment | Owner Occupied Commercial Real Estate | Pass          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 114,176,000   114,176,000   89,224,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 86,004,000   86,004,000   167,095,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 183,540,000   183,540,000   94,830,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 92,201,000   92,201,000   80,138,000
Commercial Portfolio Segment | Owner Occupied Commercial Real Estate | Special Mention          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Gross nonaccrual loans 571,000   571,000   1,022,000
Financing Receivable, Nonaccrual, No Allowance 0   0   572,000
Financing Receivable, Nonaccrual, with Allowance 571,000   571,000   450,000
Financing Receivable, Originated in Current Fiscal Year 0   0   6,146,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 5,102,000   5,102,000   4,540,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 3,086,000   3,086,000   16,386,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 12,366,000   12,366,000   11,231,000
Commercial Portfolio Segment | Owner Occupied Commercial Real Estate | Substandard          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 0   0   0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 691,000   691,000   0
Financing Receivable, Originated Two Years before Latest Fiscal Year 0   0   114,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 3,803,000   3,803,000   7,320,000
Commercial Portfolio Segment | Non Owner Occupied Commercial Real Estate          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Gross nonaccrual loans 4,778,000   4,778,000   7,146,000
Financing Receivable, Nonaccrual, No Allowance 1,318,000   1,318,000   3,424,000
Financing Receivable, Nonaccrual, with Allowance 3,460,000   3,460,000   3,722,000
Financing Receivable, Originated in Current Fiscal Year 132,922,000   132,922,000   197,548,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 188,028,000   188,028,000   175,132,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 223,918,000   223,918,000   152,810,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 158,943,000   158,943,000   174,886,000
Commercial Portfolio Segment | Non Owner Occupied Commercial Real Estate | Pass          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 132,922,000   132,922,000   197,548,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 182,994,000   182,994,000   173,153,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 218,203,000   218,203,000   148,830,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 155,131,000   155,131,000   172,438,000
Commercial Portfolio Segment | Non Owner Occupied Commercial Real Estate | Special Mention          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 0   0   0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 5,034,000   5,034,000   1,979,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 5,715,000   5,715,000   357,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 352,000   352,000   2,448,000
Commercial Portfolio Segment | Non Owner Occupied Commercial Real Estate | Substandard          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 0   0   0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0   0   0
Financing Receivable, Originated Two Years before Latest Fiscal Year 0   0   3,623,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 3,460,000   3,460,000   0
Residential Portfolio Segment          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Gross nonaccrual loans 51,000   51,000   184,000
Financing Receivable, Nonaccrual, No Allowance 0   0   67,000
Financing Receivable, Nonaccrual, with Allowance 51,000   51,000   117,000
Financing Receivable, Originated in Current Fiscal Year 43,126,000   43,126,000   30,141,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 24,715,000   24,715,000   41,829,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 25,443,000   25,443,000   15,730,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 6,619,000   6,619,000   10,421,000
Residential Portfolio Segment | Pass          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 43,126,000   43,126,000   30,141,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 24,715,000   24,715,000   41,829,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 25,443,000   25,443,000   15,730,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 6,619,000   6,619,000   10,362,000
Residential Portfolio Segment | Substandard          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 0   0   0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0   0   0
Financing Receivable, Originated Two Years before Latest Fiscal Year 0   0   0
Financing Receivable, Originated Three Years before Latest Fiscal Year 0   0   59,000
Real Estate Construction and Land Development          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 73,650,000   73,650,000   61,863,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 82,104,000   82,104,000   189,178,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 125,922,000   125,922,000   41,407,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 8,368,000   8,368,000   8,683,000
Real Estate Construction and Land Development | Pass          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 73,650,000   73,650,000   61,224,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 81,533,000   81,533,000   187,717,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 125,472,000   125,472,000   41,407,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 8,368,000   8,368,000   6,757,000
Real Estate Construction and Land Development | Special Mention          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 0   0   67,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0   0   1,011,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 450,000   450,000   0
Financing Receivable, Originated Three Years before Latest Fiscal Year 0   0   0
Real Estate Construction and Land Development | Substandard          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 0   0   572,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 571,000   571,000   450,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 0   0   0
Financing Receivable, Originated Three Years before Latest Fiscal Year 0   0   1,926,000
Real Estate Construction and Land Development | One-to-four Family Real Estate Construction          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year         33,801,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year         36,697,000
Financing Receivable, Originated Two Years before Latest Fiscal Year         2,725,000
Financing Receivable, Originated Three Years before Latest Fiscal Year         3,023,000
Real Estate Construction and Land Development | One-to-four Family Real Estate Construction | Pass          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 35,506,000   35,506,000   33,801,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 30,987,000   30,987,000   36,697,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 19,044,000   19,044,000   2,725,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 2,781,000   2,781,000   1,097,000
Real Estate Construction and Land Development | One-to-four Family Real Estate Construction | Substandard          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year         0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year         0
Financing Receivable, Originated Two Years before Latest Fiscal Year         0
Financing Receivable, Originated Three Years before Latest Fiscal Year         1,926,000
Real Estate Construction and Land Development | Five or More Family Residential and Commercial Properties          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 38,144,000   38,144,000   28,062,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 51,117,000   51,117,000   152,481,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 106,878,000   106,878,000   38,682,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 5,587,000   5,587,000   5,660,000
Real Estate Construction and Land Development | Five or More Family Residential and Commercial Properties | Pass          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 38,144,000   38,144,000   27,423,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 50,546,000   50,546,000   151,020,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 106,428,000   106,428,000   38,682,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 5,587,000   5,587,000   5,660,000
Real Estate Construction and Land Development | Five or More Family Residential and Commercial Properties | Special Mention          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 0   0   67,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0   0   1,011,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 450,000   450,000   0
Financing Receivable, Originated Three Years before Latest Fiscal Year 0   0   0
Real Estate Construction and Land Development | Five or More Family Residential and Commercial Properties | Substandard          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 0   0   572,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 571,000   571,000   450,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 0   0   0
Financing Receivable, Originated Three Years before Latest Fiscal Year 0   0   0
Consumer Portfolio Segment          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Gross nonaccrual loans 29,000   29,000   100,000
Financing Receivable, Nonaccrual, No Allowance 0   0   31,000
Financing Receivable, Nonaccrual, with Allowance 29,000   29,000   69,000
Financing Receivable, Originated in Current Fiscal Year 20,185,000   20,185,000   43,776,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 18,269,000   18,269,000   77,487,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 53,488,000   53,488,000   53,879,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 35,120,000   35,120,000   31,207,000
Consumer Portfolio Segment | Pass          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 20,185,000   20,185,000   43,742,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 18,083,000   18,083,000   77,083,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 52,803,000   52,803,000   53,195,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 34,571,000   34,571,000   30,559,000
Consumer Portfolio Segment | Substandard          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 0   0   34,000
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 186,000   186,000   404,000
Financing Receivable, Originated Two Years before Latest Fiscal Year 685,000   685,000   684,000
Financing Receivable, Originated Three Years before Latest Fiscal Year 549,000   549,000   $ 648,000
Nonaccrual          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Impaired Financing Receivable, Interest Income, Accrual Method 216,000 142,000 2,763,000 624,000  
Impaired Financing Receivable Interest Income Reversal Accrual Method (1,000) (392,000) (11,000) (408,000)  
Interest and Fee Income, Loans and Leases 0 0 0 0  
Nonaccrual | Commercial Portfolio Segment          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Impaired Financing Receivable, Interest Income, Accrual Method 184,000 140,000 2,658,000 575,000  
Impaired Financing Receivable Interest Income Reversal Accrual Method (1,000) (380,000) (11,000) (396,000)  
Nonaccrual | Commercial Portfolio Segment | Commercial and Industrial          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Impaired Financing Receivable, Interest Income, Accrual Method 184,000 111,000 2,228,000 419,000  
Impaired Financing Receivable Interest Income Reversal Accrual Method (1,000) (59,000) (11,000) (75,000)  
Nonaccrual | Commercial Portfolio Segment | Owner Occupied Commercial Real Estate          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Impaired Financing Receivable, Interest Income, Accrual Method 0 29,000 117,000 89,000  
Impaired Financing Receivable Interest Income Reversal Accrual Method 0 (219,000) 0 (219,000)  
Nonaccrual | Commercial Portfolio Segment | Non Owner Occupied Commercial Real Estate          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Impaired Financing Receivable, Interest Income, Accrual Method 0 0 313,000 67,000  
Impaired Financing Receivable Interest Income Reversal Accrual Method 0 (102,000) 0 (102,000)  
Nonaccrual | Residential Portfolio Segment          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Impaired Financing Receivable, Interest Income, Accrual Method 0 2,000 2,000  
Impaired Financing Receivable Interest Income Reversal Accrual Method 0 (1,000) (1,000)  
Nonaccrual | Real Estate Construction and Land Development | One-to-four Family Real Estate Construction          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Impaired Financing Receivable, Interest Income, Accrual Method     73,000 0  
Impaired Financing Receivable Interest Income Reversal Accrual Method     0 0  
Nonaccrual | Real Estate Construction and Land Development | Five or More Family Residential and Commercial Properties          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Impaired Financing Receivable, Interest Income, Accrual Method 0 0 0 0  
Impaired Financing Receivable Interest Income Reversal Accrual Method 0 (11,000) 0 (11,000)  
Nonaccrual | Consumer Portfolio Segment          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Impaired Financing Receivable, Interest Income, Accrual Method 32,000 0 32,000 47,000  
Impaired Financing Receivable Interest Income Reversal Accrual Method 0 0 0 0  
Troubled Debt Restructured Loans | Modified during the quarter          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Impaired Financing Receivable, Related Allowance $ 3,400,000 $ 1,600,000 $ 3,400,000 $ 1,600,000