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LOANS, ALLOWANCE FOR CREDIT LOSSES - Aging Analysis (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	$ 1,368,981	$ 1,460,792
Nonaccrual Loans	13,168	13,184
Total Past Due Accruing and Nonaccrual Loans		15,576
Total Loans	1,368,981	1,460,792
Financial Asset, Past Due
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	7,439	2,392
30-59 Days Past Due
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	3,374	1,345
60-89 Days Past Due
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	1,168	658
Greater Than 89 Days Past Due
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	2,897	389
Current
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	1,361,542	1,445,216
Commercial/Agricultural real estate: | Commercial real estate
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	707,009	748,447
Nonaccrual Loans	4,594	10,359
Total Past Due Accruing and Nonaccrual Loans		10,717
Total Loans	707,009	748,447
Commercial/Agricultural real estate: | Agricultural real estate
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	72,738	83,157
Nonaccrual Loans	6,222	391
Total Past Due Accruing and Nonaccrual Loans		391
Total Loans	72,738	83,157
Commercial/Agricultural real estate: | Multi-family real estate
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	220,706	228,004
Nonaccrual Loans	0	0
Total Past Due Accruing and Nonaccrual Loans		0
Total Loans	220,706	228,004
Commercial/Agricultural real estate: | Construction and land development
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	78,146	110,218
Nonaccrual Loans	103	54
Total Past Due Accruing and Nonaccrual Loans		54
Total Loans	78,146	110,218
Commercial/Agricultural real estate: | Financial Asset, Past Due | Commercial real estate
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	1,546	358
Commercial/Agricultural real estate: | Financial Asset, Past Due | Agricultural real estate
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	582	0
Commercial/Agricultural real estate: | Financial Asset, Past Due | Multi-family real estate
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	0	0
Commercial/Agricultural real estate: | Financial Asset, Past Due | Construction and land development
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	0	0
Commercial/Agricultural real estate: | 30-59 Days Past Due | Commercial real estate
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	857	50
Commercial/Agricultural real estate: | 30-59 Days Past Due | Agricultural real estate
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	26	0
Commercial/Agricultural real estate: | 30-59 Days Past Due | Multi-family real estate
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	0	0
Commercial/Agricultural real estate: | 30-59 Days Past Due | Construction and land development
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	0	0
Commercial/Agricultural real estate: | 60-89 Days Past Due | Commercial real estate
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	322	308
Commercial/Agricultural real estate: | 60-89 Days Past Due | Agricultural real estate
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	0	0
Commercial/Agricultural real estate: | 60-89 Days Past Due | Multi-family real estate
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	0	0
Commercial/Agricultural real estate: | 60-89 Days Past Due | Construction and land development
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	0	0
Commercial/Agricultural real estate: | Greater Than 89 Days Past Due | Commercial real estate
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	367	0
Commercial/Agricultural real estate: | Greater Than 89 Days Past Due | Agricultural real estate
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	556	0
Commercial/Agricultural real estate: | Greater Than 89 Days Past Due | Multi-family real estate
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	0	0
Commercial/Agricultural real estate: | Greater Than 89 Days Past Due | Construction and land development
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	0	0
Commercial/Agricultural real estate: | Current | Commercial real estate
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	705,463	737,730
Commercial/Agricultural real estate: | Current | Agricultural real estate
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	72,156	82,766
Commercial/Agricultural real estate: | Current | Multi-family real estate
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	220,706	228,004
Commercial/Agricultural real estate: | Current | Construction and land development
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	78,146	110,164
Commercial/Agricultural operating: | Commercial and industrial
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	115,535	121,190
Nonaccrual Loans	597	0
Total Past Due Accruing and Nonaccrual Loans		248
Total Loans	115,535	121,190
Commercial/Agricultural operating: | Agricultural operating
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	31,017	25,695
Nonaccrual Loans	793	1,180
Total Past Due Accruing and Nonaccrual Loans		1,180
Total Loans	31,017	25,695
Commercial/Agricultural operating: | Financial Asset, Past Due | Commercial and industrial
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	1,180	248
Commercial/Agricultural operating: | Financial Asset, Past Due | Agricultural operating
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	793	0
Commercial/Agricultural operating: | 30-59 Days Past Due | Commercial and industrial
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	566	248
Commercial/Agricultural operating: | 30-59 Days Past Due | Agricultural operating
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	0	0
Commercial/Agricultural operating: | 60-89 Days Past Due | Commercial and industrial
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	50	0
Commercial/Agricultural operating: | 60-89 Days Past Due | Agricultural operating
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	0	0
Commercial/Agricultural operating: | Greater Than 89 Days Past Due | Commercial and industrial
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	564	0
Commercial/Agricultural operating: | Greater Than 89 Days Past Due | Agricultural operating
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	793	0
Commercial/Agricultural operating: | Current | Commercial and industrial
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	114,355	120,942
Commercial/Agricultural operating: | Current | Agricultural operating
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	30,224	24,515
Residential mortgage: | Residential mortgage
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	131,892	128,479
Nonaccrual Loans	741	1,167
Total Past Due Accruing and Nonaccrual Loans		2,730
Total Loans	131,892	128,479
Residential mortgage: | Purchased HELOC loans
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	2,956	2,880
Nonaccrual Loans	117	0
Total Past Due Accruing and Nonaccrual Loans		117
Total Loans	2,956	2,880
Residential mortgage: | Financial Asset, Past Due | Residential mortgage
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	3,169	1,563
Residential mortgage: | Financial Asset, Past Due | Purchased HELOC loans
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	117	117
Residential mortgage: | 30-59 Days Past Due | Residential mortgage
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	1,873	826
Residential mortgage: | 30-59 Days Past Due | Purchased HELOC loans
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	0	117
Residential mortgage: | 60-89 Days Past Due | Residential mortgage
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	796	350
Residential mortgage: | 60-89 Days Past Due | Purchased HELOC loans
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	0	0
Residential mortgage: | Greater Than 89 Days Past Due | Residential mortgage
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	500	387
Residential mortgage: | Greater Than 89 Days Past Due | Purchased HELOC loans
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	117	0
Residential mortgage: | Current | Residential mortgage
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	128,723	125,749
Residential mortgage: | Current | Purchased HELOC loans
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	2,839	2,763
Consumer installment: | Originated indirect paper
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	3,970	6,535
Nonaccrual Loans	1	15
Total Past Due Accruing and Nonaccrual Loans		81
Total Loans	3,970	6,535
Consumer installment: | Other consumer
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	5,012	6,187
Nonaccrual Loans	0	18
Total Past Due Accruing and Nonaccrual Loans		58
Total Loans	5,012	6,187
Consumer installment: | Financial Asset, Past Due | Originated indirect paper
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	25	66
Consumer installment: | Financial Asset, Past Due | Other consumer
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	27	40
Consumer installment: | 30-59 Days Past Due | Originated indirect paper
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	25	66
Consumer installment: | 30-59 Days Past Due | Other consumer
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	27	38
Consumer installment: | 60-89 Days Past Due | Originated indirect paper
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	0	0
Consumer installment: | 60-89 Days Past Due | Other consumer
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	0	0
Consumer installment: | Greater Than 89 Days Past Due | Originated indirect paper
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	0	0
Consumer installment: | Greater Than 89 Days Past Due | Other consumer
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	0	2
Consumer installment: | Current | Originated indirect paper
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	3,945	6,454
Consumer installment: | Current | Other consumer
Aging analysis of the Bank's real estate and consumer loans
Loans receivable	$ 4,985	$ 6,129

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Section 45
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- Definition

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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