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Loans and Allowance for Loan Losses, Part II (Details) | 3 Months Ended | 9 Months Ended | 12 Months Ended
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Sep. 30, 2017 USD ($) | Sep. 30, 2016 USD ($) | Sep. 30, 2017 USD ($) | Sep. 30, 2016 USD ($) | Dec. 31, 2016 USD ($)
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | $ 14,452,000 |  | $ 14,452,000 |  | $ 8,185,000
Current | 1,853,110,000 |  | 1,853,110,000 |  | 1,817,807,000
Total Loans Receivable | 1,867,562,000 | $ 1,806,745,000 | 1,867,562,000 | $ 1,806,745,000 | 1,825,992,000
Total Loans 90 Days & Accruing | 0 |  | $ 0 |  | 105,000
Number of days past due when interest is not accrued |  |  | ninety days |  |
Period of satisfactory performance before returning to accrual status |  |  | not less than six months |  |
Loans with a specific allowance [Abstract] |  |  |  |  |
Recorded Balance | 15,260,000 |  | $ 15,260,000 |  | 5,266,000
Unpaid Principal Balance | 17,339,000 |  | 17,339,000 |  | 5,385,000
Specific Allowance | 295,000 |  | 295,000 |  | 858,000
Loans without a specific allowance [Abstract] |  |  |  |  |
Recorded Balance | 4,528,000 |  | 4,528,000 |  | 12,972,000
Unpaid Principal Balance | 4,915,000 |  | 4,915,000 |  | 14,612,000
Total Loans [Abstract] |  |  |  |  |
Recorded Balance | 19,788,000 |  | 19,788,000 |  | 18,238,000
Unpaid Principal Balance | 22,254,000 |  | 22,254,000 |  | 19,997,000
Average recorded investment and interest income recognized [Abstract] |  |  |  |  |
Average investment in impaired loans | 20,589,000 | 5,724,000 | 22,294,000 | 5,515,000 |
Interest income recognized | 93,000 | 5,000 | 265,000 | 13,000 |
Loans Receivable, Modifications, Still Accruing Interest | 99,000 |  | 99,000 |  | 196,000
Balances of Nonaccrual Loans [Abstract] |  |  |  |  |
Recorded balance of nonaccrual loans | 13,784,000 |  | 13,784,000 |  | 12,053,000
Interest Lost on Nonaccrual Loans |  |  | 366,000 | $ 99,000 |
Troubled Debt Restructuring [Abstract] |  |  |  |  |
Troubled Debt Restructurings Balance | 8,618,000 |  | 8,618,000 |  | 10,889,000
Financing Receivable Modifications Performing Recorded Investment | 6,004,000 |  | $ 6,004,000 |  | 6,185,000
Recorded Balance of Troubled Debt Restructurings [Abstract] |  |  |  |  |
Financing Receivables, Modifications during Period, Number |  |  | 6 | 10 |
Financing Receivables, Modifications during Period, Balance |  |  | $ 872,000 | $ 746,000 |
Subsequent Default, Number of Days Past Due |  |  | 90 days |  |
Real Estate Acquired Through Foreclosure | 2,229,000 |  | $ 2,229,000 |  | 1,982,000
Other Repossessed Assets | 35,000 |  | 35,000 |  |
Mortgage Loans Secured By Real Estate In Foreclosure |  |  | 429,000 |  | 661,000
Pass |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 1,779,571,000 |  | 1,779,571,000 |  | 1,769,460,000
Special Mention |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 49,807,000 |  | 49,807,000 |  | 27,653,000
Substandard |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 38,184,000 |  | 38,184,000 |  | 28,879,000
Doubtful |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 0 |  | 0 |  | 0
Construction and land development |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 267,000 |  | 267,000 |  | 0
Current | 76,912,000 |  | 76,912,000 |  | 49,104,000
Total Loans Receivable | 77,179,000 |  | 77,179,000 |  | 49,104,000
Total Loans 90 Days & Accruing | 0 |  | 0 |  | 0
Loans with a specific allowance [Abstract] |  |  |  |  |
Recorded Balance | 266,000 |  | 266,000 |  | 227,000
Unpaid Principal Balance | 607,000 |  | 607,000 |  | 227,000
Specific Allowance | 0 |  | 0 |  | 0
Loans without a specific allowance [Abstract] |  |  |  |  |
Recorded Balance | 0 |  | 0 |  | 0
Unpaid Principal Balance | 0 |  | 0 |  | 0
Total Loans [Abstract] |  |  |  |  |
Recorded Balance | 266,000 |  | 266,000 |  | 227,000
Unpaid Principal Balance | 607,000 |  | 607,000 |  | 227,000
Average recorded investment and interest income recognized [Abstract] |  |  |  |  |
Average investment in impaired loans | 267,000 | 231,000 | 98,000 | 231,000 |
Interest income recognized | 0 | 0 | 0 | $ 0 |
Balances of Nonaccrual Loans [Abstract] |  |  |  |  |
Recorded balance of nonaccrual loans | 266,000 |  | 266,000 |  | 227,000
Troubled Debt Restructuring [Abstract] |  |  |  |  |
Troubled Debt Restructurings Balance | 0 |  | $ 0 |  | 227,000
Recorded Balance of Troubled Debt Restructurings [Abstract] |  |  |  |  |
Financing Receivables, Modifications during Period, Number |  |  | 0 | 1 |
Financing Receivables, Modifications during Period, Balance |  |  | $ 0 | $ 231,000 |
Construction and land development | Pass |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 76,913,000 |  | 76,913,000 |  | 48,877,000
Construction and land development | Special Mention |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 0 |  | 0 |  | 0
Construction and land development | Substandard |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 266,000 |  | 266,000 |  | 227,000
Construction and land development | Doubtful |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 0 |  | 0 |  | 0
Agricultural real estate |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 396,000 |  | 396,000 |  | 424,000
Current | 125,700,000 |  | 125,700,000 |  | 125,684,000
Total Loans Receivable | 126,096,000 |  | 126,096,000 |  | 126,108,000
Total Loans 90 Days & Accruing | 0 |  | 0 |  | 0
Loans with a specific allowance [Abstract] |  |  |  |  |
Recorded Balance | 276,000 |  | 276,000 |  | 0
Unpaid Principal Balance | 276,000 |  | 276,000 |  | 0
Specific Allowance | 0 |  | 0 |  | 0
Loans without a specific allowance [Abstract] |  |  |  |  |
Recorded Balance | 15,000 |  | 15,000 |  | 205,000
Unpaid Principal Balance | 15,000 |  | 15,000 |  | 207,000
Total Loans [Abstract] |  |  |  |  |
Recorded Balance | 291,000 |  | 291,000 |  | 205,000
Unpaid Principal Balance | 291,000 |  | 291,000 |  | 207,000
Average recorded investment and interest income recognized [Abstract] |  |  |  |  |
Average investment in impaired loans | 291,000 | 474,000 | 293,000 | 476,000 |
Interest income recognized | 0 | 0 | 0 | 0 |
Balances of Nonaccrual Loans [Abstract] |  |  |  |  |
Recorded balance of nonaccrual loans | 291,000 |  | 291,000 |  | 205,000
Agricultural real estate | Pass |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 119,958,000 |  | 119,958,000 |  | 118,934,000
Agricultural real estate | Special Mention |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 4,862,000 |  | 4,862,000 |  | 5,190,000
Agricultural real estate | Substandard |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 1,276,000 |  | 1,276,000 |  | 1,984,000
Agricultural real estate | Doubtful |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 0 |  | 0 |  | 0
1-4 Family residential properties |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 3,970,000 |  | 3,970,000 |  | 3,575,000
Current | 297,927,000 |  | 297,927,000 |  | 322,840,000
Total Loans Receivable | 301,897,000 |  | 301,897,000 |  | 326,415,000
Total Loans 90 Days & Accruing | 0 |  | 0 |  | 105,000
Loans with a specific allowance [Abstract] |  |  |  |  |
Recorded Balance | 1,417,000 |  | 1,417,000 |  | 997,000
Unpaid Principal Balance | 1,738,000 |  | 1,738,000 |  | 997,000
Specific Allowance | 125,000 |  | 125,000 |  | 6,000
Loans without a specific allowance [Abstract] |  |  |  |  |
Recorded Balance | 1,623,000 |  | 1,623,000 |  | 2,497,000
Unpaid Principal Balance | 2,106,000 |  | 2,106,000 |  | 3,207,000
Total Loans [Abstract] |  |  |  |  |
Recorded Balance | 3,040,000 |  | 3,040,000 |  | 3,494,000
Unpaid Principal Balance | 3,844,000 |  | 3,844,000 |  | 4,204,000
Average recorded investment and interest income recognized [Abstract] |  |  |  |  |
Average investment in impaired loans | 3,047,000 | 1,572,000 | 3,003,000 | 1,344,000 |
Interest income recognized | 5,000 | 3,000 | 16,000 | 10,000 |
Loans Receivable, Modifications, Still Accruing Interest | 410,000 | 514,000 | 410,000 | $ 514,000 |
Balances of Nonaccrual Loans [Abstract] |  |  |  |  |
Recorded balance of nonaccrual loans | 2,630,000 |  | 2,630,000 |  | 2,890,000
Troubled Debt Restructuring [Abstract] |  |  |  |  |
Troubled Debt Restructurings Balance | 843,000 |  | 843,000 |  | 1,753,000
Financing Receivable Modifications Performing Recorded Investment | 410,000 |  | $ 410,000 |  | 603,000
Recorded Balance of Troubled Debt Restructurings [Abstract] |  |  |  |  |
Financing Receivables, Modifications during Period, Number |  |  | 1 | 1 |
Financing Receivables, Modifications during Period, Balance |  |  | $ 17,000 | $ 47,000 |
1-4 Family residential properties | Pass |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 290,989,000 |  | 290,989,000 |  | 318,921,000
1-4 Family residential properties | Special Mention |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 2,359,000 |  | 2,359,000 |  | 918,000
1-4 Family residential properties | Substandard |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 8,549,000 |  | 8,549,000 |  | 6,576,000
1-4 Family residential properties | Doubtful |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 0 |  | 0 |  | 0
Multifamily residential properties |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 4,550,000 |  | 4,550,000 |  | 240,000
Current | 67,773,000 |  | 67,773,000 |  | 82,960,000
Total Loans Receivable | 72,323,000 |  | 72,323,000 |  | 83,200,000
Total Loans 90 Days & Accruing | 0 |  | 0 |  | 0
Loans with a specific allowance [Abstract] |  |  |  |  |
Recorded Balance | 7,425,000 |  | 7,425,000 |  | 528,000
Unpaid Principal Balance | 7,425,000 |  | 7,425,000 |  | 528,000
Specific Allowance | 11,000 |  | 11,000 |  | 0
Loans without a specific allowance [Abstract] |  |  |  |  |
Recorded Balance | 0 |  | 0 |  | 3,419,000
Unpaid Principal Balance | 0 |  | 0 |  | 3,547,000
Total Loans [Abstract] |  |  |  |  |
Recorded Balance | 7,425,000 |  | 7,425,000 |  | 3,947,000
Unpaid Principal Balance | 7,425,000 |  | 7,425,000 |  | 4,075,000
Average recorded investment and interest income recognized [Abstract] |  |  |  |  |
Average investment in impaired loans | 8,017,000 | 535,000 | 10,839,000 | 539,000 |
Interest income recognized | 80,000 | 0 | 229,000 | 0 |
Loans Receivable, Modifications, Still Accruing Interest | 5,217,000 | 3,430,000 | 5,217,000 | 3,430,000 |
Balances of Nonaccrual Loans [Abstract] |  |  |  |  |
Recorded balance of nonaccrual loans | 2,208,000 |  | 2,208,000 |  | 528,000
Troubled Debt Restructuring [Abstract] |  |  |  |  |
Troubled Debt Restructurings Balance | 5,217,000 |  | 5,217,000 |  | 3,419,000
Financing Receivable Modifications Performing Recorded Investment | 5,217,000 |  | 5,217,000 |  | 3,419,000
Multifamily residential properties | Pass |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 64,938,000 |  | 64,938,000 |  | 81,018,000
Multifamily residential properties | Special Mention |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 89,000 |  | 89,000 |  | 1,651,000
Multifamily residential properties | Substandard |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 7,296,000 |  | 7,296,000 |  | 531,000
Multifamily residential properties | Doubtful |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 0 |  | 0 |  | 0
Commercial real estate |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 3,227,000 |  | 3,227,000 |  | 2,421,000
Current | 643,957,000 |  | 643,957,000 |  | 627,714,000
Total Loans Receivable | 647,184,000 |  | 647,184,000 |  | 630,135,000
Total Loans 90 Days & Accruing | 0 |  | 0 |  | 0
Loans with a specific allowance [Abstract] |  |  |  |  |
Recorded Balance | 4,391,000 |  | 4,391,000 |  | 863,000
Unpaid Principal Balance | 4,547,000 |  | 4,547,000 |  | 884,000
Specific Allowance | 29,000 |  | 29,000 |  | 0
Loans without a specific allowance [Abstract] |  |  |  |  |
Recorded Balance | 1,297,000 |  | 1,297,000 |  | 6,224,000
Unpaid Principal Balance | 1,474,000 |  | 1,474,000 |  | 6,802,000
Total Loans [Abstract] |  |  |  |  |
Recorded Balance | 5,688,000 |  | 5,688,000 |  | 7,087,000
Unpaid Principal Balance | 6,021,000 |  | 6,021,000 |  | 7,686,000
Average recorded investment and interest income recognized [Abstract] |  |  |  |  |
Average investment in impaired loans | 5,762,000 | 1,097,000 | 4,638,000 | 1,064,000 |
Interest income recognized | 6,000 | 1,000 | 14,000 | 2,000 |
Loans Receivable, Modifications, Still Accruing Interest | 347,000 | 2,152,000 | 347,000 | $ 2,152,000 |
Balances of Nonaccrual Loans [Abstract] |  |  |  |  |
Recorded balance of nonaccrual loans | 5,341,000 |  | 5,341,000 |  | 4,971,000
Troubled Debt Restructuring [Abstract] |  |  |  |  |
Troubled Debt Restructurings Balance | 671,000 |  | 671,000 |  | 4,125,000
Financing Receivable Modifications Performing Recorded Investment | 347,000 |  | $ 347,000 |  | 2,116,000
Recorded Balance of Troubled Debt Restructurings [Abstract] |  |  |  |  |
Financing Receivables, Modifications during Period, Number |  |  | 0 | 1 |
Financing Receivables, Modifications during Period, Balance |  |  | $ 0 | $ 43,000 |
Commercial real estate | Pass |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 609,203,000 |  | 609,203,000 |  | 610,025,000
Commercial real estate | Special Mention |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 20,082,000 |  | 20,082,000 |  | 5,229,000
Commercial real estate | Substandard |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 17,899,000 |  | 17,899,000 |  | 14,881,000
Commercial real estate | Doubtful |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 0 |  | 0 |  | 0
Agricultural loans |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 233,000 |  | 233,000 |  | 486,000
Current | 81,150,000 |  | 81,150,000 |  | 86,199,000
Total Loans Receivable | 81,383,000 |  | 81,383,000 |  | 86,685,000
Total Loans 90 Days & Accruing | 0 |  | 0 |  | 0
Loans with a specific allowance [Abstract] |  |  |  |  |
Recorded Balance | 237,000 |  | 237,000 |  | 1,345,000
Unpaid Principal Balance | 1,080,000 |  | 1,080,000 |  | 1,345,000
Specific Allowance | 0 |  | 0 |  | 660,000
Loans without a specific allowance [Abstract] |  |  |  |  |
Recorded Balance | 597,000 |  | 597,000 |  | 43,000
Unpaid Principal Balance | 7,000 |  | 7,000 |  | 66,000
Total Loans [Abstract] |  |  |  |  |
Recorded Balance | 834,000 |  | 834,000 |  | 1,388,000
Unpaid Principal Balance | 1,087,000 |  | 1,087,000 |  | 1,411,000
Average recorded investment and interest income recognized [Abstract] |  |  |  |  |
Average investment in impaired loans | 834,000 | 755,000 | 900,000 | 696,000 |
Interest income recognized | 0 | 0 | 0 | 0 |
Balances of Nonaccrual Loans [Abstract] |  |  |  |  |
Recorded balance of nonaccrual loans | 834,000 |  | 834,000 |  | 1,388,000
Troubled Debt Restructuring [Abstract] |  |  |  |  |
Troubled Debt Restructurings Balance | 828,000 |  | $ 828,000 |  | 0
Recorded Balance of Troubled Debt Restructurings [Abstract] |  |  |  |  |
Financing Receivables, Modifications during Period, Number |  |  | 4 |  |
Financing Receivables, Modifications during Period, Balance |  |  | $ 828,000 |  |
Agricultural loans | Pass |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 78,356,000 |  | 78,356,000 |  | 81,922,000
Agricultural loans | Special Mention |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 2,128,000 |  | 2,128,000 |  | 3,271,000
Agricultural loans | Substandard |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 899,000 |  | 899,000 |  | 1,492,000
Agricultural loans | Doubtful |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 0 |  | 0 |  | 0
Commercial and industrial loans |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 1,612,000 |  | 1,612,000 |  | 799,000
Current | 441,861,000 |  | 441,861,000 |  | 408,234,000
Total Loans Receivable | 443,473,000 |  | 443,473,000 |  | 409,033,000
Total Loans 90 Days & Accruing | 0 |  | 0 |  | 0
Loans with a specific allowance [Abstract] |  |  |  |  |
Recorded Balance | 1,038,000 |  | 1,038,000 |  | 1,093,000
Unpaid Principal Balance | 1,456,000 |  | 1,456,000 |  | 1,191,000
Specific Allowance | 128,000 |  | 128,000 |  | 192,000
Loans without a specific allowance [Abstract] |  |  |  |  |
Recorded Balance | 911,000 |  | 911,000 |  | 378,000
Unpaid Principal Balance | 1,218,000 |  | 1,218,000 |  | 572,000
Total Loans [Abstract] |  |  |  |  |
Recorded Balance | 1,949,000 |  | 1,949,000 |  | 1,471,000
Unpaid Principal Balance | 2,674,000 |  | 2,674,000 |  | 1,763,000
Average recorded investment and interest income recognized [Abstract] |  |  |  |  |
Average investment in impaired loans | 2,075,000 | 744,000 | 2,216,000 | 777,000 |
Interest income recognized | 2,000 | 1,000 | 6,000 | 1,000 |
Loans Receivable, Modifications, Still Accruing Interest | 29,000 | 46,000 | 29,000 | $ 46,000 |
Balances of Nonaccrual Loans [Abstract] |  |  |  |  |
Recorded balance of nonaccrual loans | 1,920,000 |  | 1,920,000 |  | 1,430,000
Troubled Debt Restructuring [Abstract] |  |  |  |  |
Troubled Debt Restructurings Balance | 849,000 |  | 849,000 |  | 1,040,000
Financing Receivable Modifications Performing Recorded Investment | 29,000 |  | $ 29,000 |  | 41,000
Recorded Balance of Troubled Debt Restructurings [Abstract] |  |  |  |  |
Financing Receivables, Modifications during Period, Number |  |  | 1 | 6 |
Financing Receivables, Modifications during Period, Balance |  |  | $ 27,000 | $ 405,000 |
Commercial and industrial loans | Pass |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 424,306,000 |  | 424,306,000 |  | 397,762,000
Commercial and industrial loans | Special Mention |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 17,560,000 |  | 17,560,000 |  | 8,485,000
Commercial and industrial loans | Substandard |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 1,607,000 |  | 1,607,000 |  | 2,786,000
Commercial and industrial loans | Doubtful |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 0 |  | 0 |  | 0
Consumer loans |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 197,000 |  | 197,000 |  | 240,000
Current | 29,877,000 |  | 29,877,000 |  | 37,788,000
Total Loans Receivable | 30,074,000 |  | 30,074,000 |  | 38,028,000
Total Loans 90 Days & Accruing | 0 |  | 0 |  | 0
Loans with a specific allowance [Abstract] |  |  |  |  |
Recorded Balance | 210,000 |  | 210,000 |  | 213,000
Unpaid Principal Balance | 210,000 |  | 210,000 |  | 213,000
Specific Allowance | 2,000 |  | 2,000 |  | 0
Loans without a specific allowance [Abstract] |  |  |  |  |
Recorded Balance | 85,000 |  | 85,000 |  | 206,000
Unpaid Principal Balance | 95,000 |  | 95,000 |  | 211,000
Total Loans [Abstract] |  |  |  |  |
Recorded Balance | 295,000 |  | 295,000 |  | 419,000
Unpaid Principal Balance | 305,000 |  | 305,000 |  | 424,000
Average recorded investment and interest income recognized [Abstract] |  |  |  |  |
Average investment in impaired loans | 296,000 | 306,000 | 307,000 | 388,000 |
Interest income recognized | 0 | 0 | 0 | 0 |
Loans Receivable, Modifications, Still Accruing Interest | 1,000 | 9,000 | 1,000 | $ 9,000 |
Balances of Nonaccrual Loans [Abstract] |  |  |  |  |
Recorded balance of nonaccrual loans | 294,000 |  | 294,000 |  | 414,000
Troubled Debt Restructuring [Abstract] |  |  |  |  |
Troubled Debt Restructurings Balance | 210,000 |  | 210,000 |  | 325,000
Financing Receivable Modifications Performing Recorded Investment | 1,000 |  | $ 1,000 |  | 6,000
Recorded Balance of Troubled Debt Restructurings [Abstract] |  |  |  |  |
Financing Receivables, Modifications during Period, Number |  |  | 0 | 1 |
Financing Receivables, Modifications during Period, Balance |  |  | $ 0 | $ 20,000 |
Consumer loans | Pass |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 29,669,000 |  | 29,669,000 |  | 37,624,000
Consumer loans | Special Mention |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 13,000 |  | 13,000 |  | 17,000
Consumer loans | Substandard |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 392,000 |  | 392,000 |  | 387,000
Consumer loans | Doubtful |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 0 |  | 0 |  | 0
All other loans |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 0 |  | 0 |  | 0
Current | 87,953,000 |  | 87,953,000 |  | 77,284,000
Total Loans Receivable | 87,953,000 |  | 87,953,000 |  | 77,284,000
Total Loans 90 Days & Accruing | 0 |  | 0 |  | 0
Loans with a specific allowance [Abstract] |  |  |  |  |
Recorded Balance | 0 |  | 0 |  | 0
Unpaid Principal Balance | 0 |  | 0 |  | 0
Specific Allowance | 0 |  | 0 |  | 0
Loans without a specific allowance [Abstract] |  |  |  |  |
Recorded Balance | 0 |  | 0 |  | 0
Unpaid Principal Balance | 0 |  | 0 |  | 0
Total Loans [Abstract] |  |  |  |  |
Recorded Balance | 0 |  | 0 |  | 0
Unpaid Principal Balance | 0 |  | 0 |  | 0
Average recorded investment and interest income recognized [Abstract] |  |  |  |  |
Average investment in impaired loans | 0 | 10,000 |  |  |
Interest income recognized | 0 | 0 |  |  |
All other loans | Pass |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 85,239,000 |  | 85,239,000 |  | 74,377,000
All other loans | Special Mention |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 2,714,000 |  | 2,714,000 |  | 2,892,000
All other loans | Substandard |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 0 |  | 0 |  | 15,000
All other loans | Doubtful |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Loans Receivable | 0 |  | 0 |  | 0
Loans secured by real estate |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 12,410,000 |  | 12,410,000 |  | 6,660,000
Current | 1,212,269,000 |  | 1,212,269,000 |  | 1,208,302,000
Total Loans Receivable | 1,224,679,000 |  | 1,224,679,000 |  | 1,214,962,000
Total Loans 90 Days & Accruing | 0 |  | 0 |  | 105,000
Loans with a specific allowance [Abstract] |  |  |  |  |
Recorded Balance | 13,775,000 |  | 13,775,000 |  | 2,615,000
Unpaid Principal Balance | 14,593,000 |  | 14,593,000 |  | 2,636,000
Specific Allowance | 165,000 |  | 165,000 |  | 6,000
Loans without a specific allowance [Abstract] |  |  |  |  |
Recorded Balance | 2,935,000 |  | 2,935,000 |  | 12,345,000
Unpaid Principal Balance | 3,595,000 |  | 3,595,000 |  | 13,763,000
Total Loans [Abstract] |  |  |  |  |
Recorded Balance | 16,710,000 |  | 16,710,000 |  | 14,960,000
Unpaid Principal Balance | 18,188,000 |  | 18,188,000 |  | 16,399,000
Average recorded investment and interest income recognized [Abstract] |  |  |  |  |
Average investment in impaired loans | 17,384,000 | 3,909,000 | 18,871,000 | 3,654,000 |
Interest income recognized | 91,000 | $ 4,000 | 259,000 | $ 12,000 |
Balances of Nonaccrual Loans [Abstract] |  |  |  |  |
Recorded balance of nonaccrual loans | 10,736,000 |  | 10,736,000 |  | 8,821,000
Troubled Debt Restructuring [Abstract] |  |  |  |  |
Troubled Debt Restructurings Balance | 6,731,000 |  | 6,731,000 |  | 9,524,000
Financing Receivable Modifications Performing Recorded Investment | 5,974,000 |  | $ 5,974,000 |  | 6,138,000
Recorded Balance of Troubled Debt Restructurings [Abstract] |  |  |  |  |
Financing Receivables, Modifications during Period, Number |  |  | 1 | 3 |
Financing Receivables, Modifications during Period, Balance |  |  | $ 17,000 | $ 321,000 |
Financing Receivables, 30 to 59 Days Past Due [Member] |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 3,325,000 |  | 3,325,000 |  | 4,468,000
Financing Receivables, 30 to 59 Days Past Due [Member] | Construction and land development |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 0 |  | 0 |  | 0
Financing Receivables, 30 to 59 Days Past Due [Member] | Agricultural real estate |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 0 |  | 0 |  | 0
Financing Receivables, 30 to 59 Days Past Due [Member] | 1-4 Family residential properties |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 1,542,000 |  | 1,542,000 |  | 1,854,000
Financing Receivables, 30 to 59 Days Past Due [Member] | Multifamily residential properties |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 0 |  | 0 |  | 0
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial real estate |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 968,000 |  | 968,000 |  | 1,662,000
Financing Receivables, 30 to 59 Days Past Due [Member] | Agricultural loans |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 14,000 |  | 14,000 |  | 365,000
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial and industrial loans |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 613,000 |  | 613,000 |  | 395,000
Financing Receivables, 30 to 59 Days Past Due [Member] | Consumer loans |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 188,000 |  | 188,000 |  | 192,000
Financing Receivables, 30 to 59 Days Past Due [Member] | All other loans |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 0 |  | 0 |  | 0
Financing Receivables, 30 to 59 Days Past Due [Member] | Loans secured by real estate |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 2,510,000 |  | 2,510,000 |  | 3,516,000
Financing Receivables, 60 to 89 Days Past Due [Member] |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 6,359,000 |  | 6,359,000 |  | 1,836,000
Financing Receivables, 60 to 89 Days Past Due [Member] | Construction and land development |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 0 |  | 0 |  | 0
Financing Receivables, 60 to 89 Days Past Due [Member] | Agricultural real estate |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 0 |  | 0 |  | 131,000
Financing Receivables, 60 to 89 Days Past Due [Member] | 1-4 Family residential properties |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 282,000 |  | 282,000 |  | 713,000
Financing Receivables, 60 to 89 Days Past Due [Member] | Multifamily residential properties |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 4,494,000 |  | 4,494,000 |  | 0
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial real estate |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 1,129,000 |  | 1,129,000 |  | 716,000
Financing Receivables, 60 to 89 Days Past Due [Member] | Agricultural loans |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 41,000 |  | 41,000 |  | 84,000
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial and industrial loans |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 407,000 |  | 407,000 |  | 155,000
Financing Receivables, 60 to 89 Days Past Due [Member] | Consumer loans |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 6,000 |  | 6,000 |  | 37,000
Financing Receivables, 60 to 89 Days Past Due [Member] | All other loans |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 0 |  | 0 |  | 0
Financing Receivables, 60 to 89 Days Past Due [Member] | Loans secured by real estate |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 5,905,000 |  | 5,905,000 |  | 1,560,000
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 4,768,000 |  | 4,768,000 |  | 1,881,000
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Construction and land development |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 267,000 |  | 267,000 |  | 0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Agricultural real estate |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 396,000 |  | 396,000 |  | 293,000
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | 1-4 Family residential properties |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 2,146,000 |  | 2,146,000 |  | 1,008,000
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Multifamily residential properties |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 56,000 |  | 56,000 |  | 240,000
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial real estate |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 1,130,000 |  | 1,130,000 |  | 43,000
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Agricultural loans |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 178,000 |  | 178,000 |  | 37,000
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial and industrial loans |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 592,000 |  | 592,000 |  | 249,000
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Consumer loans |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 3,000 |  | 3,000 |  | 11,000
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | All other loans |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | 0 |  | 0 |  | 0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Loans secured by real estate |  |  |  |  |
Loans Receivable Aging Analysis [Abstract] |  |  |  |  |
Total Past Due | $ 3,995,000 |  | $ 3,995,000 |  | $ 1,584,000

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