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FAIR VALUE MEASUREMENTS - Measured on Non-recurring Basis (Details) - Non-recurring - USD ($)	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022
Assets
Liabilities measured at fair value	$ 0		$ 0
Level 3
Assets
Individually evaluated loans	15,513,000	$ 16,477,000
Capitalized servicing rights	6,570,000	6,845,000
Premises held for sale	252,000	252,000
Total	22,335,000	23,574,000
Total Gains (Losses)	(1,239,000)
Level 3 | Impaired loans
Assets
Total Gains (Losses)	(964,000)
Level 3 | Capitalized servicing rights
Assets
Total Gains (Losses)	(275,000)
Level 3 | Assets held for sale
Assets
Premises held for sale	252,000	$ 252,000
Total Gains (Losses)	$ 0

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Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Fair value portion of assets classified as held for sale.

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Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3).

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The balance of financing receivables that were individually evaluated for impairment.

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Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

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