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LOANS, ALLOWANCE FOR CREDIT LOSSES - Schedule of Loans Amortized Cost (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Loans	$ 1,368,981	$ 1,460,792
Less Allowance for credit losses	(20,549)	(22,908)	$ (17,939)
Loans receivable, net	$ 1,348,432	$ 1,437,884
Total, percent	100.00%	100.00%
Commercial/Agricultural real estate:
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Less Allowance for credit losses	$ (16,516)	$ (18,784)	(14,085)
Commercial/Agricultural real estate: | Commercial real estate
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Loans	$ 707,009	$ 748,447
Total, percent	51.70%	51.20%
Commercial/Agricultural real estate: | Agricultural real estate
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Loans	$ 72,738	$ 83,157
Total, percent	5.30%	5.70%
Commercial/Agricultural real estate: | Multi-family real estate
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Loans	$ 220,706	$ 228,004
Total, percent	16.10%	15.60%
Commercial/Agricultural real estate: | Construction and land development
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Loans	$ 78,146	$ 110,218
Total, percent	5.70%	7.50%
Commercial/Agricultural operating:
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Less Allowance for credit losses	$ (1,330)	$ (1,105)	(2,318)
Commercial/Agricultural operating: | Commercial and industrial
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Loans	$ 115,535	$ 121,190
Total, percent	8.40%	8.30%
Commercial/Agricultural operating: | Agricultural operating
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Loans	$ 31,017	$ 25,695
Total, percent	2.30%	1.80%
Residential mortgage:
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Less Allowance for credit losses	$ (2,489)	$ (2,744)	(599)
Residential mortgage: | Residential mortgage
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Loans	$ 131,892	$ 128,479
Total, percent	9.60%	8.80%
Residential mortgage: | Purchased HELOC loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Loans	$ 2,956	$ 2,880
Total, percent	0.20%	0.20%
Consumer installment:
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Less Allowance for credit losses	$ (214)	$ (275)	$ (129)
Consumer installment: | Originated indirect paper
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Loans	$ 3,970	$ 6,535
Total, percent	0.30%	0.40%
Consumer installment: | Other consumer
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Loans	$ 5,012	$ 6,187
Total, percent	0.40%	0.40%

X

- Definition

Percentage, before allowance for credit loss, of financing receivable to total financing receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph c
-Publisher SEC

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-X (SX)
-Number 210
-Section 12
-Subsection 29
-Publisher SEC

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 948
-SubTopic 310
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479628/948-310-S99-1

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(7))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

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