XML 63 R52.htm IDEA: XBRL DOCUMENT v3.20.2
Allowance for Credit Losses and Allowance for Unfunded Commitments and Letters of Credit (Analysis of Credit Quality of the Loan Portfolio) (Details) - USD ($)
Jun. 30, 2020
Mar. 31, 2020
Jan. 01, 2020
Dec. 31, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year $ 1,682,691,000     $ 1,594,130,000      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 1,583,351,000     1,280,086,000      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 1,153,098,000     1,125,520,000      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 994,827,000     1,023,452,000      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 936,680,000     687,055,000      
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 1,681,714,000     1,241,613,000      
Financing Receivable, Revolving 1,705,227,000     1,713,819,000      
Financing Receivable, Revolving Converted to Term Loans 34,310,000     77,790,000      
Loans and Leases Receivable, Net of Deferred Income 9,771,898,000     8,743,465,000      
Financing Receivable, Allowance for Credit Loss 151,546,000 $ 122,074,000 $ 85,600,000 83,968,000 $ 80,517,000 $ 83,274,000 $ 83,369,000
Loans, net 9,620,352,000     8,659,497,000      
Commercial Real Estate [Member]              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year 342,734,000     701,207,000      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 717,433,000     573,995,000      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 563,657,000     637,452,000      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 589,059,000     605,517,000      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 568,122,000     461,498,000      
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 1,199,329,000     888,851,000      
Financing Receivable, Revolving 48,813,000     52,276,000      
Financing Receivable, Revolving Converted to Term Loans 3,496,000     25,057,000      
Loans and Leases Receivable, Net of Deferred Income 4,032,643,000     3,945,853,000      
Financing Receivable, Allowance for Credit Loss 50,233,000 37,122,000 27,873,000 20,340,000 15,648,000 16,359,000 14,766,000
Commercial Real Estate [Member] | Pass [Member]              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year 332,517,000     699,336,000      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 650,893,000     562,992,000      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 521,112,000     621,113,000      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 569,062,000     565,928,000      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 483,908,000     441,220,000      
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 1,121,467,000     873,687,000      
Financing Receivable, Revolving 48,813,000     52,276,000      
Financing Receivable, Revolving Converted to Term Loans 2,424,000     19,986,000      
Loans and Leases Receivable, Net of Deferred Income 3,730,196,000     3,836,538,000      
Commercial Real Estate [Member] | Special Mention [Member]              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year 10,217,000     1,824,000      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 64,490,000     305,000      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 18,809,000     7,019,000      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 13,462,000     3,360,000      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 44,503,000     0      
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 44,766,000     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 196,247,000     15,934,000      
Commercial Real Estate [Member] | Substandard [Member]              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year 0     47,000      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 2,050,000     10,698,000      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 23,736,000     9,320,000      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 6,535,000     36,229,000      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 39,711,000     20,278,000      
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 33,096,000     11,738,000      
Financing Receivable, Revolving 0     0      
Financing Receivable, Revolving Converted to Term Loans 1,072,000     5,071,000      
Loans and Leases Receivable, Net of Deferred Income 106,200,000     93,381,000      
Commercial Real Estate [Member] | Doubtful [Member]              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year 0     0      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0     0      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0     0      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0     0      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 0     0      
Financing Receivable, Originated, More than Five Years before Current 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, Year One, Originated, Current Fiscal Year 1,081,858,000     481,807,000      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 492,687,000     466,135,000      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 413,384,000     334,448,000      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 292,161,000     312,877,000      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 271,960,000     160,715,000      
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 303,162,000     203,646,000      
Financing Receivable, Revolving 995,265,000     1,003,012,000      
Financing Receivable, Revolving Converted to Term Loans 9,036,000     26,973,000      
Loans and Leases Receivable, Net of Deferred Income 3,859,513,000     2,989,613,000      
Financing Receivable, Allowance for Credit Loss 53,186,000 45,570,000 31,054,000 30,292,000 29,700,000 34,545,000 34,658,000
Commercial Business [Member] | Pass [Member]              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year 1,075,991,000     479,481,000      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 440,684,000     442,222,000      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 355,598,000     330,934,000      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 259,075,000     301,337,000      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 256,579,000     157,436,000      
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 284,232,000     199,089,000      
Financing Receivable, Revolving 920,762,000     963,663,000      
Financing Receivable, Revolving Converted to Term Loans 5,951,000     25,577,000      
Loans and Leases Receivable, Net of Deferred Income 3,598,872,000     2,899,739,000      
Commercial Business [Member] | Special Mention [Member]              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year 4,944,000     2,241,000      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 47,663,000     6,673,000      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 36,645,000     56,000      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 26,728,000     2,006,000      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 6,702,000     52,000      
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 11,349,000     585,000      
Financing Receivable, Revolving 34,348,000     12,710,000      
Financing Receivable, Revolving Converted to Term Loans 0     0      
Loans and Leases Receivable, Net of Deferred Income 168,379,000     24,323,000      
Commercial Business [Member] | Substandard [Member]              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year 923,000     85,000      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 4,340,000     17,240,000      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 21,141,000     3,458,000      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 6,358,000     9,534,000      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 8,679,000     3,227,000      
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 7,581,000     3,972,000      
Financing Receivable, Revolving 40,155,000     26,639,000      
Financing Receivable, Revolving Converted to Term Loans 3,085,000     1,396,000      
Loans and Leases Receivable, Net of Deferred Income 92,262,000     65,551,000      
Commercial Business [Member] | Doubtful [Member]              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year 0     0      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0     0      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0     0      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0     0      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 0     0      
Financing Receivable, Originated, More than Five Years before Current 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, Year One, Originated, Current Fiscal Year 120,338,000     115,000,000      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 116,420,000     63,532,000      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 50,270,000     77,891,000      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 66,340,000     77,781,000      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 68,789,000     35,138,000      
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 75,616,000     62,616,000      
Financing Receivable, Revolving 328,383,000     316,989,000      
Financing Receivable, Revolving Converted to Term Loans 19,794,000     16,424,000      
Loans and Leases Receivable, Net of Deferred Income 845,950,000     765,371,000      
Financing Receivable, Allowance for Credit Loss 14,868,000 11,085,000 6,510,000 15,835,000 12,671,000 10,690,000 9,589,000
Agriculture [Member] | Pass [Member]              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year 118,361,000     107,152,000      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 103,163,000     54,950,000      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 44,586,000     70,337,000      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 60,678,000     71,874,000      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 60,533,000     33,597,000      
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 69,132,000     56,342,000      
Financing Receivable, Revolving 274,960,000     280,984,000      
Financing Receivable, Revolving Converted to Term Loans 17,136,000     10,036,000      
Loans and Leases Receivable, Net of Deferred Income 748,549,000     685,272,000      
Agriculture [Member] | Special Mention [Member]              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year 0     557,000      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 521,000     2,535,000      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0     1,381,000      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0     0      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 271,000     64,000      
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 275,000     576,000      
Financing Receivable, Revolving 1,429,000     5,336,000      
Financing Receivable, Revolving Converted to Term Loans 0     0      
Loans and Leases Receivable, Net of Deferred Income 2,496,000     10,449,000      
Agriculture [Member] | Substandard [Member]              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year 1,977,000     7,291,000      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 12,736,000     6,047,000      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 5,684,000     6,173,000      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 5,662,000     5,907,000      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 7,985,000     1,477,000      
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 6,209,000     5,698,000      
Financing Receivable, Revolving 51,994,000     30,669,000      
Financing Receivable, Revolving Converted to Term Loans 2,658,000     6,388,000      
Loans and Leases Receivable, Net of Deferred Income 94,905,000     69,650,000      
Agriculture [Member] | Doubtful [Member]              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year 0     0      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0     0      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0     0      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0     0      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 0     0      
Financing Receivable, Originated, More than Five Years before Current 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, Year One, Originated, Current Fiscal Year 58,564,000     183,525,000      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 161,371,000     92,606,000      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 38,720,000     40,514,000      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 9,610,000     1,067,000      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 1,025,000     939,000      
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 2,057,000     1,660,000      
Financing Receivable, Revolving 32,668,000     33,429,000      
Financing Receivable, Revolving Converted to Term Loans 0     7,793,000      
Loans and Leases Receivable, Net of Deferred Income 304,015,000     361,533,000      
Financing Receivable, Allowance for Credit Loss 7,953,000 8,845,000 6,821,000 8,571,000 12,457,000 11,965,000 14,395,000
Construction [Member] | Pass [Member]              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year 58,564,000     183,525,000      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 140,987,000     91,342,000      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 32,706,000     40,514,000      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 9,610,000     1,067,000      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 1,025,000     939,000      
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 1,999,000     1,601,000      
Financing Receivable, Revolving 32,630,000     33,388,000      
Financing Receivable, Revolving Converted to Term Loans 0     7,793,000      
Loans and Leases Receivable, Net of Deferred Income 277,521,000     360,169,000      
Construction [Member] | Special Mention [Member]              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year 0     0      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 17,912,000     1,264,000      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 488,000     0      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0     0      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 0     0      
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 0     0      
Financing Receivable, Revolving 0     41,000      
Financing Receivable, Revolving Converted to Term Loans 0     0      
Loans and Leases Receivable, Net of Deferred Income 18,400,000     1,305,000      
Construction [Member] | Substandard [Member]              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year 0     0      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 2,472,000     0      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 5,526,000     0      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0     0      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 0     0      
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 58,000     59,000      
Financing Receivable, Revolving 38,000     0      
Financing Receivable, Revolving Converted to Term Loans 0     0      
Loans and Leases Receivable, Net of Deferred Income 8,094,000     59,000      
Construction [Member] | Doubtful [Member]              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year 0     0      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0     0      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0     0      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0     0      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 0     0      
Financing Receivable, Originated, More than Five Years before Current 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, Year One, Originated, Current Fiscal Year 75,697,000     103,315,000      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 91,192,000     78,105,000      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 82,333,000     33,240,000      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 36,248,000     25,452,000      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 26,360,000     27,917,000      
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 100,007,000     83,526,000      
Financing Receivable, Revolving 279,455,000     284,735,000      
Financing Receivable, Revolving Converted to Term Loans 1,545,000     1,035,000      
Loans and Leases Receivable, Net of Deferred Income 692,837,000     637,325,000      
Financing Receivable, Allowance for Credit Loss 23,711,000 17,659,000 11,672,000 7,435,000 7,619,000 8,311,000 8,024,000
One-to-Four Family Residential [Member] | Pass [Member]              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year 75,255,000     103,315,000      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 90,453,000     77,877,000      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 82,106,000     32,440,000      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 35,033,000     25,052,000      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 25,963,000     27,294,000      
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 97,256,000     80,370,000      
Financing Receivable, Revolving 278,444,000     283,830,000      
Financing Receivable, Revolving Converted to Term Loans 790,000     554,000      
Loans and Leases Receivable, Net of Deferred Income 685,300,000     630,732,000      
One-to-Four Family Residential [Member] | Special Mention [Member]              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year 0     0      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0     0      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0     0      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0     0      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 0     0      
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 219,000     0      
Financing Receivable, Revolving 0     0      
Financing Receivable, Revolving Converted to Term Loans 0     0      
Loans and Leases Receivable, Net of Deferred Income 219,000     0      
One-to-Four Family Residential [Member] | Substandard [Member]              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year 442,000     0      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 739,000     228,000      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 227,000     800,000      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 1,215,000     400,000      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 397,000     623,000      
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 2,532,000     3,156,000      
Financing Receivable, Revolving 1,011,000     905,000      
Financing Receivable, Revolving Converted to Term Loans 755,000     481,000      
Loans and Leases Receivable, Net of Deferred Income 7,318,000     6,593,000      
One-to-Four Family Residential [Member] | Doubtful [Member]              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year 0     0      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0     0      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0     0      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0     0      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 0     0      
Financing Receivable, Originated, More than Five Years before Current 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, Year One, Originated, Current Fiscal Year 3,500,000     9,276,000      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 4,248,000     5,713,000      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 4,734,000     1,975,000      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 1,409,000     758,000      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 424,000     848,000      
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 1,543,000     1,314,000      
Financing Receivable, Revolving 20,643,000     23,378,000      
Financing Receivable, Revolving Converted to Term Loans 439,000     508,000      
Loans and Leases Receivable, Net of Deferred Income 36,940,000     43,770,000      
Financing Receivable, Allowance for Credit Loss 1,595,000 $ 1,644,000 $ 1,661,000 883,000 $ 715,000 $ 823,000 $ 787,000
Consumer Loan [Member] | Pass [Member]              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year 3,500,000     9,276,000      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 4,237,000     5,713,000      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 4,734,000     1,974,000      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 1,409,000     758,000      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 420,000     848,000      
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 1,536,000     1,306,000      
Financing Receivable, Revolving 20,611,000     23,351,000      
Financing Receivable, Revolving Converted to Term Loans 439,000     508,000      
Loans and Leases Receivable, Net of Deferred Income 36,886,000     43,734,000      
Consumer Loan [Member] | Special Mention [Member]              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year 0     0      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0     0      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0     0      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0     0      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 0     0      
Financing Receivable, Originated, More than Five Years before Current 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, Year One, Originated, Current Fiscal Year 0     0      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 11,000     0      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0     1,000      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0     0      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 4,000     0      
Financing Receivable, Originated, More than Five Years before Current Fiscal Year 7,000     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 54,000     36,000      
Consumer Loan [Member] | Doubtful [Member]              
Accounts, Notes, Loans and Financing Receivable [Line Items]              
Financing Receivable, Year One, Originated, Current Fiscal Year 0     0      
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year 0     0      
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year 0     0      
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year 0     0      
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year 0     0      
Financing Receivable, Originated, More than Five Years before Current 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