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LOANS, ALLOWANCE FOR LOAN LOSSES AND IMPAIRED LOANS - Loans By Risk (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance $ 1,416,135 $ 1,317,045  
Unearned net deferred fees and costs and loans in process (2,585) (2,482)  
Unamortized discount on acquired loans (1,766) (3,600)  
Allowance for loan losses (17,939) (16,913)  
Loans receivable, net 1,393,845 1,294,050  
SBA PPP loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 8,755  
Commercial/Agricultural real estate:      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 1,125,279 1,034,829  
Allowance for loan losses (14,085) (13,210)  
Commercial/Agricultural real estate: | Commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 725,971 698,465  
Commercial/Agricultural real estate: | Agricultural real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 87,908 78,495  
Commercial/Agricultural real estate: | Multi-family real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 208,908 178,349  
Commercial/Agricultural real estate: | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 102,492 79,520  
C&I/Agricultural operating: | Commercial and Industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 136,013 122,167  
C&I/Agricultural operating: | Agricultural Operating      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 28,806 31,588  
Residential mortgage: | Residential Mortgages      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 105,389 90,990  
Residential mortgage: | Purchased HELOC loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 3,262 3,871  
Consumer installment: | Originated indirect paper      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 10,236 15,971  
Consumer installment: | Other Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 7,150 8,874  
Originated Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 1,272,943 1,118,494  
Allowance for loan losses (17,309) (15,830) $ (14,819)
Originated Loans | SBA PPP loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 8,755  
Originated Loans | Commercial/Agricultural real estate:      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 1,017,529 883,430  
Allowance for loan losses (13,551) (12,354) $ (10,271)
Originated Loans | Commercial/Agricultural real estate: | Commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 640,816 578,395  
Originated Loans | Commercial/Agricultural real estate: | Agricultural real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 69,431 52,372  
Originated Loans | Commercial/Agricultural real estate: | Multi-family real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 205,601 174,050  
Originated Loans | Commercial/Agricultural real estate: | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 101,681 78,613  
Originated Loans | C&I/Agricultural operating: | Commercial and Industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 127,115 107,937  
Originated Loans | C&I/Agricultural operating: | Agricultural Operating      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 23,124 26,202  
Originated Loans | Residential mortgage: | Residential Mortgages      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 84,783 63,855  
Originated Loans | Residential mortgage: | Purchased HELOC loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 3,262 3,871  
Originated Loans | Consumer installment: | Originated indirect paper      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 10,236 15,971  
Originated Loans | Consumer installment: | Other Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 6,894 8,473  
Total originated loans before SBA PPP loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 1,272,943 1,109,739  
Acquired Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 143,192 198,551  
Allowance for loan losses (630) (1,083)  
Acquired Loans | Commercial/Agricultural real estate:      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Allowance for loan losses (534) (856)  
Acquired Loans | Commercial/Agricultural real estate: | Commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 85,155 120,070  
Acquired Loans | Commercial/Agricultural real estate: | Agricultural real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 18,477 26,123  
Acquired Loans | Commercial/Agricultural real estate: | Multi-family real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 3,307 4,299  
Acquired Loans | Commercial/Agricultural real estate: | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 811 907  
Acquired Loans | C&I/Agricultural operating: | Commercial and Industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 8,898 14,230  
Acquired Loans | C&I/Agricultural operating: | Agricultural Operating      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 5,682 5,386  
Acquired Loans | Residential mortgage: | Residential Mortgages      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 20,606 27,135  
Acquired Loans | Consumer installment: | Other Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 256 401  
Gross loans before SBA PPP loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 1,416,135 1,308,290  
1 to 5      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 1,386,646 1,289,692  
1 to 5 | SBA PPP loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 8,755  
1 to 5 | Commercial/Agricultural real estate: | Commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 712,658 689,563  
1 to 5 | Commercial/Agricultural real estate: | Agricultural real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 84,215 71,885  
1 to 5 | Commercial/Agricultural real estate: | Multi-family real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 208,908 178,059  
1 to 5 | Commercial/Agricultural real estate: | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 102,385 75,881  
1 to 5 | C&I/Agricultural operating: | Commercial and Industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 129,748 121,729  
1 to 5 | C&I/Agricultural operating: | Agricultural Operating      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 26,418 28,871  
1 to 5 | Residential mortgage: | Residential Mortgages      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 101,730 86,623  
1 to 5 | Residential mortgage: | Purchased HELOC loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 3,262 3,706  
1 to 5 | Consumer installment: | Originated indirect paper      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 10,190 15,818  
1 to 5 | Consumer installment: | Other Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 7,132 8,802  
1 to 5 | Originated Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 1,247,873 1,101,634  
1 to 5 | Originated Loans | SBA PPP loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 8,755  
1 to 5 | Originated Loans | Commercial/Agricultural real estate: | Commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 628,999 572,724  
1 to 5 | Originated Loans | Commercial/Agricultural real estate: | Agricultural real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 67,248 50,834  
1 to 5 | Originated Loans | Commercial/Agricultural real estate: | Multi-family real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 205,601 173,760  
1 to 5 | Originated Loans | Commercial/Agricultural real estate: | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 101,681 75,146  
1 to 5 | Originated Loans | C&I/Agricultural operating: | Commercial and Industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 120,882 107,798  
1 to 5 | Originated Loans | C&I/Agricultural operating: | Agricultural Operating      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 20,896 23,935  
1 to 5 | Originated Loans | Residential mortgage: | Residential Mortgages      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 82,236 60,754  
1 to 5 | Originated Loans | Residential mortgage: | Purchased HELOC loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 3,262 3,706  
1 to 5 | Originated Loans | Consumer installment: | Originated indirect paper      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 10,190 15,818  
1 to 5 | Originated Loans | Consumer installment: | Other Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 6,878 8,404  
1 to 5 | Total originated loans before SBA PPP loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 1,247,873 1,092,879  
1 to 5 | Acquired Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 138,773 188,058  
1 to 5 | Acquired Loans | Commercial/Agricultural real estate: | Commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 83,659 116,839  
1 to 5 | Acquired Loans | Commercial/Agricultural real estate: | Agricultural real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 16,967 21,051  
1 to 5 | Acquired Loans | Commercial/Agricultural real estate: | Multi-family real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 3,307 4,299  
1 to 5 | Acquired Loans | Commercial/Agricultural real estate: | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 704 735  
1 to 5 | Acquired Loans | C&I/Agricultural operating: | Commercial and Industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 8,866 13,931  
1 to 5 | Acquired Loans | C&I/Agricultural operating: | Agricultural Operating      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 5,522 4,936  
1 to 5 | Acquired Loans | Residential mortgage: | Residential Mortgages      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 19,494 25,869  
1 to 5 | Acquired Loans | Consumer installment: | Other Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 254 398  
1 to 5 | Gross loans before SBA PPP loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 1,386,646 1,280,937  
6      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 12,170 4,536  
6 | SBA PPP loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
6 | Commercial/Agricultural real estate: | Commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 5,771 1,981  
6 | Commercial/Agricultural real estate: | Agricultural real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 549 1,267  
6 | Commercial/Agricultural real estate: | Multi-family real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 290  
6 | Commercial/Agricultural real estate: | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 172  
6 | C&I/Agricultural operating: | Commercial and Industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 5,526 62  
6 | C&I/Agricultural operating: | Agricultural Operating      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 324 764  
6 | Residential mortgage: | Residential Mortgages      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
6 | Residential mortgage: | Purchased HELOC loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
6 | Consumer installment: | Originated indirect paper      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
6 | Consumer installment: | Other Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
6 | Originated Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 12,170 3,045  
6 | Originated Loans | SBA PPP loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
6 | Originated Loans | Commercial/Agricultural real estate: | Commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 5,771 667  
6 | Originated Loans | Commercial/Agricultural real estate: | Agricultural real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 549 1,267  
6 | Originated Loans | Commercial/Agricultural real estate: | Multi-family real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 290  
6 | Originated Loans | Commercial/Agricultural real estate: | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
6 | Originated Loans | C&I/Agricultural operating: | Commercial and Industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 5,526 57  
6 | Originated Loans | C&I/Agricultural operating: | Agricultural Operating      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 324 764  
6 | Originated Loans | Residential mortgage: | Residential Mortgages      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
6 | Originated Loans | Residential mortgage: | Purchased HELOC loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
6 | Originated Loans | Consumer installment: | Originated indirect paper      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
6 | Originated Loans | Consumer installment: | Other Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
6 | Total originated loans before SBA PPP loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 12,170 3,045  
6 | Acquired Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 1,491  
6 | Acquired Loans | Commercial/Agricultural real estate: | Commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 1,314  
6 | Acquired Loans | Commercial/Agricultural real estate: | Agricultural real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
6 | Acquired Loans | Commercial/Agricultural real estate: | Multi-family real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
6 | Acquired Loans | Commercial/Agricultural real estate: | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 172  
6 | Acquired Loans | C&I/Agricultural operating: | Commercial and Industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 5  
6 | Acquired Loans | C&I/Agricultural operating: | Agricultural Operating      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
6 | Acquired Loans | Residential mortgage: | Residential Mortgages      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
6 | Acquired Loans | Consumer installment: | Other Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
6 | Gross loans before SBA PPP loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 12,170 4,536  
7      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 17,319 22,817  
7 | SBA PPP loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
7 | Commercial/Agricultural real estate: | Commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 7,542 6,921  
7 | Commercial/Agricultural real estate: | Agricultural real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 3,144 5,343  
7 | Commercial/Agricultural real estate: | Multi-family real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
7 | Commercial/Agricultural real estate: | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 107 3,467  
7 | C&I/Agricultural operating: | Commercial and Industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 739 376  
7 | C&I/Agricultural operating: | Agricultural Operating      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 2,064 1,953  
7 | Residential mortgage: | Residential Mortgages      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 3,659 4,367  
7 | Residential mortgage: | Purchased HELOC loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 165  
7 | Consumer installment: | Originated indirect paper      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 46 153  
7 | Consumer installment: | Other Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 18 72  
7 | Originated Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 12,900 13,815  
7 | Originated Loans | SBA PPP loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
7 | Originated Loans | Commercial/Agricultural real estate: | Commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 6,046 5,004  
7 | Originated Loans | Commercial/Agricultural real estate: | Agricultural real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 1,634 271  
7 | Originated Loans | Commercial/Agricultural real estate: | Multi-family real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
7 | Originated Loans | Commercial/Agricultural real estate: | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 3,467  
7 | Originated Loans | C&I/Agricultural operating: | Commercial and Industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 707 82  
7 | Originated Loans | C&I/Agricultural operating: | Agricultural Operating      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 1,904 1,503  
7 | Originated Loans | Residential mortgage: | Residential Mortgages      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 2,547 3,101  
7 | Originated Loans | Residential mortgage: | Purchased HELOC loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 165  
7 | Originated Loans | Consumer installment: | Originated indirect paper      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 46 153  
7 | Originated Loans | Consumer installment: | Other Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 16 69  
7 | Total originated loans before SBA PPP loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 12,900 13,815  
7 | Acquired Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 4,419 9,002  
7 | Acquired Loans | Commercial/Agricultural real estate: | Commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 1,496 1,917  
7 | Acquired Loans | Commercial/Agricultural real estate: | Agricultural real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 1,510 5,072  
7 | Acquired Loans | Commercial/Agricultural real estate: | Multi-family real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
7 | Acquired Loans | Commercial/Agricultural real estate: | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 107 0  
7 | Acquired Loans | C&I/Agricultural operating: | Commercial and Industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 32 294  
7 | Acquired Loans | C&I/Agricultural operating: | Agricultural Operating      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 160 450  
7 | Acquired Loans | Residential mortgage: | Residential Mortgages      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 1,112 1,266  
7 | Acquired Loans | Consumer installment: | Other Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 2 3  
7 | Gross loans before SBA PPP loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 17,319 22,817  
8      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | SBA PPP loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Commercial/Agricultural real estate: | Commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Commercial/Agricultural real estate: | Agricultural real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Commercial/Agricultural real estate: | Multi-family real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Commercial/Agricultural real estate: | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | C&I/Agricultural operating: | Commercial and Industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | C&I/Agricultural operating: | Agricultural Operating      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Residential mortgage: | Residential Mortgages      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Residential mortgage: | Purchased HELOC loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Consumer installment: | Originated indirect paper      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Consumer installment: | Other Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Originated Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Originated Loans | SBA PPP loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Originated Loans | Commercial/Agricultural real estate: | Commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Originated Loans | Commercial/Agricultural real estate: | Agricultural real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Originated Loans | Commercial/Agricultural real estate: | Multi-family real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Originated Loans | Commercial/Agricultural real estate: | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Originated Loans | C&I/Agricultural operating: | Commercial and Industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Originated Loans | C&I/Agricultural operating: | Agricultural Operating      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Originated Loans | Residential mortgage: | Residential Mortgages      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Originated Loans | Residential mortgage: | Purchased HELOC loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Originated Loans | Consumer installment: | Originated indirect paper      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Originated Loans | Consumer installment: | Other Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Total originated loans before SBA PPP loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Acquired Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Acquired Loans | Commercial/Agricultural real estate: | Commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Acquired Loans | Commercial/Agricultural real estate: | Agricultural real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Acquired Loans | Commercial/Agricultural real estate: | Multi-family real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Acquired Loans | Commercial/Agricultural real estate: | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Acquired Loans | C&I/Agricultural operating: | Commercial and Industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Acquired Loans | C&I/Agricultural operating: | Agricultural Operating      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Acquired Loans | Residential mortgage: | Residential Mortgages      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Acquired Loans | Consumer installment: | Other Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
8 | Gross loans before SBA PPP loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | SBA PPP loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Commercial/Agricultural real estate: | Commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Commercial/Agricultural real estate: | Agricultural real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Commercial/Agricultural real estate: | Multi-family real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Commercial/Agricultural real estate: | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | C&I/Agricultural operating: | Commercial and Industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | C&I/Agricultural operating: | Agricultural Operating      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Residential mortgage: | Residential Mortgages      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Residential mortgage: | Purchased HELOC loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Consumer installment: | Originated indirect paper      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Consumer installment: | Other Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Originated Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Originated Loans | SBA PPP loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Originated Loans | Commercial/Agricultural real estate: | Commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Originated Loans | Commercial/Agricultural real estate: | Agricultural real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Originated Loans | Commercial/Agricultural real estate: | Multi-family real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Originated Loans | Commercial/Agricultural real estate: | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Originated Loans | C&I/Agricultural operating: | Commercial and Industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Originated Loans | C&I/Agricultural operating: | Agricultural Operating      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Originated Loans | Residential mortgage: | Residential Mortgages      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Originated Loans | Residential mortgage: | Purchased HELOC loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Originated Loans | Consumer installment: | Originated indirect paper      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Originated Loans | Consumer installment: | Other Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Total originated loans before SBA PPP loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Acquired Loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Acquired Loans | Commercial/Agricultural real estate: | Commercial real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Acquired Loans | Commercial/Agricultural real estate: | Agricultural real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Acquired Loans | Commercial/Agricultural real estate: | Multi-family real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Acquired Loans | Commercial/Agricultural real estate: | Construction and land development      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Acquired Loans | C&I/Agricultural operating: | Commercial and Industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Acquired Loans | C&I/Agricultural operating: | Agricultural Operating      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Acquired Loans | Residential mortgage: | Residential Mortgages      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Acquired Loans | Consumer installment: | Other Consumer      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance 0 0  
9 | Gross loans before SBA PPP loans      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Balance $ 0 $ 0