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Allowance for Credit Losses and Allowance for Unfunded Commitments and Letters of Credit (Analysis of Credit Quality of the Loan Portfolio) (Details) - USD ($)
Mar. 31, 2020
Jan. 01, 2020
Dec. 31, 2019
Mar. 31, 2019
Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year $ 389,665,000   $ 1,594,130,000    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 1,625,057,000   1,280,086,000    
Financing Receivable, Originated Two Years before Latest Fiscal Year 1,199,557,000   1,125,520,000    
Financing Receivable, Originated Three Years before Latest Fiscal Year 1,063,447,000   1,023,452,000    
Financing Receivable, Originated Four Years before Latest Fiscal Year 975,000,000   687,055,000    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 1,796,247,000   1,241,613,000    
Financing Receivable, Revolving 1,853,918,000   1,713,819,000    
Financing Receivable, Revolving Converted to Term Loans 30,430,000   77,790,000    
Loans and Leases Receivable, Net of Deferred Income 8,933,321,000   8,743,465,000    
Financing Receivable, Allowance for Credit Loss 122,074,000 $ 85,600,000 83,968,000 $ 83,274,000 $ 83,369,000
Loans, net 8,811,247,000   8,659,497,000    
Commercial Real Estate [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 171,154,000   701,207,000    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 717,727,000   573,995,000    
Financing Receivable, Originated Two Years before Latest Fiscal Year 553,215,000   637,452,000    
Financing Receivable, Originated Three Years before Latest Fiscal Year 624,031,000   605,517,000    
Financing Receivable, Originated Four Years before Latest Fiscal Year 586,322,000   461,498,000    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 1,256,179,000   888,851,000    
Financing Receivable, Revolving 59,709,000   52,276,000    
Financing Receivable, Revolving Converted to Term Loans 1,637,000   25,057,000    
Loans and Leases Receivable, Net of Deferred Income 3,969,974,000   3,945,853,000    
Financing Receivable, Allowance for Credit Loss 37,122,000 27,873,000 20,340,000 16,359,000 14,766,000
Commercial Real Estate [Member] | Pass [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 164,265,000   699,336,000    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 690,076,000   562,992,000    
Financing Receivable, Originated Two Years before Latest Fiscal Year 526,063,000   621,113,000    
Financing Receivable, Originated Three Years before Latest Fiscal Year 611,317,000   565,928,000    
Financing Receivable, Originated Four Years before Latest Fiscal Year 509,264,000   441,220,000    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 1,198,213,000   873,687,000    
Financing Receivable, Revolving 59,709,000   52,276,000    
Financing Receivable, Revolving Converted to Term Loans 1,637,000   19,986,000    
Loans and Leases Receivable, Net of Deferred Income 3,760,544,000   3,836,538,000    
Commercial Real Estate [Member] | Special Mention [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 6,889,000   1,824,000    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 26,718,000   305,000    
Financing Receivable, Originated Two Years before Latest Fiscal Year 5,889,000   7,019,000    
Financing Receivable, Originated Three Years before Latest Fiscal Year 5,249,000   3,360,000    
Financing Receivable, Originated Four Years before Latest Fiscal Year 37,070,000   0    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 27,729,000   3,426,000    
Financing Receivable, Revolving 0   0    
Financing Receivable, Revolving Converted to Term Loans 0   0    
Loans and Leases Receivable, Net of Deferred Income 109,544,000   15,934,000    
Commercial Real Estate [Member] | Substandard [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 0   47,000    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 933,000   10,698,000    
Financing Receivable, Originated Two Years before Latest Fiscal Year 21,263,000   9,320,000    
Financing Receivable, Originated Three Years before Latest Fiscal Year 7,465,000   36,229,000    
Financing Receivable, Originated Four Years before Latest Fiscal Year 39,988,000   20,278,000    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 30,237,000   11,738,000    
Financing Receivable, Revolving 0   0    
Financing Receivable, Revolving Converted to Term Loans 0   5,071,000    
Loans and Leases Receivable, Net of Deferred Income 99,886,000   93,381,000    
Commercial Real Estate [Member] | Doubtful [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 0   0    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0   0    
Financing Receivable, Originated Two Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Three Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Four Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0   0    
Financing Receivable, Revolving 0   0    
Financing Receivable, Revolving Converted to Term Loans 0   0    
Loans and Leases Receivable, Net of Deferred Income 0   0    
Commercial Business [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 145,938,000   481,807,000    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 500,131,000   466,135,000    
Financing Receivable, Originated Two Years before Latest Fiscal Year 434,872,000   334,448,000    
Financing Receivable, Originated Three Years before Latest Fiscal Year 309,496,000   312,877,000    
Financing Receivable, Originated Four Years before Latest Fiscal Year 285,714,000   160,715,000    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 331,690,000   203,646,000    
Financing Receivable, Revolving 1,157,237,000   1,003,012,000    
Financing Receivable, Revolving Converted to Term Loans 4,590,000   26,973,000    
Loans and Leases Receivable, Net of Deferred Income 3,169,668,000   2,989,613,000    
Financing Receivable, Allowance for Credit Loss 45,570,000 31,054,000 30,292,000 34,545,000 34,658,000
Commercial Business [Member] | Pass [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 144,819,000   479,481,000    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 454,524,000   442,222,000    
Financing Receivable, Originated Two Years before Latest Fiscal Year 379,756,000   330,934,000    
Financing Receivable, Originated Three Years before Latest Fiscal Year 282,662,000   301,337,000    
Financing Receivable, Originated Four Years before Latest Fiscal Year 249,772,000   157,436,000    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 305,401,000   199,089,000    
Financing Receivable, Revolving 1,056,278,000   963,663,000    
Financing Receivable, Revolving Converted to Term Loans 1,547,000   25,577,000    
Loans and Leases Receivable, Net of Deferred Income 2,874,759,000   2,899,739,000    
Commercial Business [Member] | Special Mention [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 1,119,000   2,241,000    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 44,237,000   6,673,000    
Financing Receivable, Originated Two Years before Latest Fiscal Year 31,717,000   56,000    
Financing Receivable, Originated Three Years before Latest Fiscal Year 24,361,000   2,006,000    
Financing Receivable, Originated Four Years before Latest Fiscal Year 27,597,000   52,000    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 14,953,000   585,000    
Financing Receivable, Revolving 53,274,000   12,710,000    
Financing Receivable, Revolving Converted to Term Loans 0   0    
Loans and Leases Receivable, Net of Deferred Income 197,258,000   24,323,000    
Commercial Business [Member] | Substandard [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 0   85,000    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 1,370,000   17,240,000    
Financing Receivable, Originated Two Years before Latest Fiscal Year 23,399,000   3,458,000    
Financing Receivable, Originated Three Years before Latest Fiscal Year 2,473,000   9,534,000    
Financing Receivable, Originated Four Years before Latest Fiscal Year 8,345,000   3,227,000    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 11,336,000   3,972,000    
Financing Receivable, Revolving 47,685,000   26,639,000    
Financing Receivable, Revolving Converted to Term Loans 3,043,000   1,396,000    
Loans and Leases Receivable, Net of Deferred Income 97,651,000   65,551,000    
Commercial Business [Member] | Doubtful [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 0   0    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0   0    
Financing Receivable, Originated Two Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Three Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Four Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0   0    
Financing Receivable, Revolving 0   0    
Financing Receivable, Revolving Converted to Term Loans 0   0    
Loans and Leases Receivable, Net of Deferred Income 0   0    
Agriculture [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 24,539,000   115,000,000    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 124,096,000   63,532,000    
Financing Receivable, Originated Two Years before Latest Fiscal Year 54,850,000   77,891,000    
Financing Receivable, Originated Three Years before Latest Fiscal Year 71,035,000   77,781,000    
Financing Receivable, Originated Four Years before Latest Fiscal Year 73,602,000   35,138,000    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 90,482,000   62,616,000    
Financing Receivable, Revolving 306,342,000   316,989,000    
Financing Receivable, Revolving Converted to Term Loans 9,545,000   16,424,000    
Loans and Leases Receivable, Net of Deferred Income 754,491,000   765,371,000    
Financing Receivable, Allowance for Credit Loss 11,085,000 6,510,000 15,835,000 10,690,000 9,589,000
Agriculture [Member] | Pass [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 23,639,000   107,152,000    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 105,950,000   54,950,000    
Financing Receivable, Originated Two Years before Latest Fiscal Year 48,643,000   70,337,000    
Financing Receivable, Originated Three Years before Latest Fiscal Year 64,450,000   71,874,000    
Financing Receivable, Originated Four Years before Latest Fiscal Year 65,316,000   33,597,000    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 84,182,000   56,342,000    
Financing Receivable, Revolving 249,785,000   280,984,000    
Financing Receivable, Revolving Converted to Term Loans 7,026,000   10,036,000    
Loans and Leases Receivable, Net of Deferred Income 648,991,000   685,272,000    
Agriculture [Member] | Special Mention [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 0   557,000    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 189,000   2,535,000    
Financing Receivable, Originated Two Years before Latest Fiscal Year 670,000   1,381,000    
Financing Receivable, Originated Three Years before Latest Fiscal Year 747,000   0    
Financing Receivable, Originated Four Years before Latest Fiscal Year 1,687,000   64,000    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 64,000   576,000    
Financing Receivable, Revolving 5,207,000   5,336,000    
Financing Receivable, Revolving Converted to Term Loans 0   0    
Loans and Leases Receivable, Net of Deferred Income 8,564,000   10,449,000    
Agriculture [Member] | Substandard [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 900,000   7,291,000    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 17,957,000   6,047,000    
Financing Receivable, Originated Two Years before Latest Fiscal Year 5,537,000   6,173,000    
Financing Receivable, Originated Three Years before Latest Fiscal Year 5,838,000   5,907,000    
Financing Receivable, Originated Four Years before Latest Fiscal Year 6,599,000   1,477,000    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 6,236,000   5,698,000    
Financing Receivable, Revolving 51,350,000   30,669,000    
Financing Receivable, Revolving Converted to Term Loans 2,519,000   6,388,000    
Loans and Leases Receivable, Net of Deferred Income 96,936,000   69,650,000    
Agriculture [Member] | Doubtful [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 0   0    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0   0    
Financing Receivable, Originated Two Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Three Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Four Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0   0    
Financing Receivable, Revolving 0   0    
Financing Receivable, Revolving Converted to Term Loans 0   0    
Loans and Leases Receivable, Net of Deferred Income 0   0    
Construction [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 23,340,000   183,525,000    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 173,305,000   92,606,000    
Financing Receivable, Originated Two Years before Latest Fiscal Year 62,269,000   40,514,000    
Financing Receivable, Originated Three Years before Latest Fiscal Year 18,838,000   1,067,000    
Financing Receivable, Originated Four Years before Latest Fiscal Year 1,046,000   939,000    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 2,380,000   1,660,000    
Financing Receivable, Revolving 12,887,000   33,429,000    
Financing Receivable, Revolving Converted to Term Loans 14,121,000   7,793,000    
Loans and Leases Receivable, Net of Deferred Income 308,186,000   361,533,000    
Financing Receivable, Allowance for Credit Loss 8,845,000 6,821,000 8,571,000 11,965,000 14,395,000
Construction [Member] | Pass [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 23,340,000   183,525,000    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 173,088,000   91,342,000    
Financing Receivable, Originated Two Years before Latest Fiscal Year 61,777,000   40,514,000    
Financing Receivable, Originated Three Years before Latest Fiscal Year 18,838,000   1,067,000    
Financing Receivable, Originated Four Years before Latest Fiscal Year 1,046,000   939,000    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 2,322,000   1,601,000    
Financing Receivable, Revolving 12,846,000   33,388,000    
Financing Receivable, Revolving Converted to Term Loans 14,121,000   7,793,000    
Loans and Leases Receivable, Net of Deferred Income 307,378,000   360,169,000    
Construction [Member] | Special Mention [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 0   0    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0   1,264,000    
Financing Receivable, Originated Two Years before Latest Fiscal Year 492,000   0    
Financing Receivable, Originated Three Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Four Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0   0    
Financing Receivable, Revolving 41,000   41,000    
Financing Receivable, Revolving Converted to Term Loans 0   0    
Loans and Leases Receivable, Net of Deferred Income 533,000   1,305,000    
Construction [Member] | Substandard [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 0   0    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 217,000   0    
Financing Receivable, Originated Two Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Three Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Four Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 58,000   59,000    
Financing Receivable, Revolving 0   0    
Financing Receivable, Revolving Converted to Term Loans 0   0    
Loans and Leases Receivable, Net of Deferred Income 275,000   59,000    
Construction [Member] | Doubtful [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 0   0    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0   0    
Financing Receivable, Originated Two Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Three Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Four Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0   0    
Financing Receivable, Revolving 0   0    
Financing Receivable, Revolving Converted to Term Loans 0   0    
Loans and Leases Receivable, Net of Deferred Income 0   0    
One-to-Four Family Residential [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 21,809,000   103,315,000    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 105,016,000   78,105,000    
Financing Receivable, Originated Two Years before Latest Fiscal Year 88,882,000   33,240,000    
Financing Receivable, Originated Three Years before Latest Fiscal Year 38,378,000   25,452,000    
Financing Receivable, Originated Four Years before Latest Fiscal Year 27,778,000   27,917,000    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 113,584,000   83,526,000    
Financing Receivable, Revolving 294,964,000   284,735,000    
Financing Receivable, Revolving Converted to Term Loans 95,000   1,035,000    
Loans and Leases Receivable, Net of Deferred Income 690,506,000   637,325,000    
Financing Receivable, Allowance for Credit Loss 17,659,000 11,672,000 7,435,000 8,311,000 8,024,000
One-to-Four Family Residential [Member] | Pass [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 21,809,000   103,315,000    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 104,274,000   77,877,000    
Financing Receivable, Originated Two Years before Latest Fiscal Year 88,655,000   32,440,000    
Financing Receivable, Originated Three Years before Latest Fiscal Year 37,480,000   25,052,000    
Financing Receivable, Originated Four Years before Latest Fiscal Year 27,379,000   27,294,000    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 110,624,000   80,370,000    
Financing Receivable, Revolving 294,074,000   283,830,000    
Financing Receivable, Revolving Converted to Term Loans 80,000   554,000    
Loans and Leases Receivable, Net of Deferred Income 684,375,000   630,732,000    
One-to-Four Family Residential [Member] | Special Mention [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 0   0    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0   0    
Financing Receivable, Originated Two Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Three Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Four Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0   0    
Financing Receivable, Revolving 0   0    
Financing Receivable, Revolving Converted to Term Loans 0   0    
Loans and Leases Receivable, Net of Deferred Income 0   0    
One-to-Four Family Residential [Member] | Substandard [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 0   0    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 742,000   228,000    
Financing Receivable, Originated Two Years before Latest Fiscal Year 227,000   800,000    
Financing Receivable, Originated Three Years before Latest Fiscal Year 898,000   400,000    
Financing Receivable, Originated Four Years before Latest Fiscal Year 399,000   623,000    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 2,960,000   3,156,000    
Financing Receivable, Revolving 890,000   905,000    
Financing Receivable, Revolving Converted to Term Loans 15,000   481,000    
Loans and Leases Receivable, Net of Deferred Income 6,131,000   6,593,000    
One-to-Four Family Residential [Member] | Doubtful [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 0   0    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0   0    
Financing Receivable, Originated Two Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Three Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Four Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0   0    
Financing Receivable, Revolving 0   0    
Financing Receivable, Revolving Converted to Term Loans 0   0    
Loans and Leases Receivable, Net of Deferred Income 0   0    
Consumer Loan [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 2,885,000   9,276,000    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 4,782,000   5,713,000    
Financing Receivable, Originated Two Years before Latest Fiscal Year 5,469,000   1,975,000    
Financing Receivable, Originated Three Years before Latest Fiscal Year 1,669,000   758,000    
Financing Receivable, Originated Four Years before Latest Fiscal Year 538,000   848,000    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 1,932,000   1,314,000    
Financing Receivable, Revolving 22,779,000   23,378,000    
Financing Receivable, Revolving Converted to Term Loans 442,000   508,000    
Loans and Leases Receivable, Net of Deferred Income 40,496,000   43,770,000    
Financing Receivable, Allowance for Credit Loss 1,644,000 $ 1,661,000 883,000 $ 823,000 $ 787,000
Consumer Loan [Member] | Pass [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 2,885,000   9,276,000    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 4,782,000   5,713,000    
Financing Receivable, Originated Two Years before Latest Fiscal Year 5,469,000   1,974,000    
Financing Receivable, Originated Three Years before Latest Fiscal Year 1,669,000   758,000    
Financing Receivable, Originated Four Years before Latest Fiscal Year 538,000   848,000    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 1,863,000   1,306,000    
Financing Receivable, Revolving 22,747,000   23,351,000    
Financing Receivable, Revolving Converted to Term Loans 442,000   508,000    
Loans and Leases Receivable, Net of Deferred Income 40,395,000   43,734,000    
Consumer Loan [Member] | Special Mention [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 0   0    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0   0    
Financing Receivable, Originated Two Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Three Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Four Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0   0    
Financing Receivable, Revolving 0   0    
Financing Receivable, Revolving Converted to Term Loans 0   0    
Loans and Leases Receivable, Net of Deferred Income 0   0    
Consumer Loan [Member] | Substandard [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 0   0    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0   0    
Financing Receivable, Originated Two Years before Latest Fiscal Year 0   1,000    
Financing Receivable, Originated Three Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Four Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 69,000   8,000    
Financing Receivable, Revolving 32,000   27,000    
Financing Receivable, Revolving Converted to Term Loans 0   0    
Loans and Leases Receivable, Net of Deferred Income 101,000   36,000    
Consumer Loan [Member] | Doubtful [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Financing Receivable, Originated in Current Fiscal Year 0   0    
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year 0   0    
Financing Receivable, Originated Two Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Three Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Four Years before Latest Fiscal Year 0   0    
Financing Receivable, Originated Five or More Years before Latest Fiscal Year 0   0    
Financing Receivable, Revolving 0   0    
Financing Receivable, Revolving Converted to Term Loans 0   0    
Loans and Leases Receivable, Net of Deferred Income $ 0   $ 0