FAIR VALUE - Summary of assets measured at level 3 fair value on recurring basis (Details)	3 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2022 USD ($) item	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($) loan	Jun. 30, 2022 USD ($)
Summary of assets measured on a recurring and nonrecurring basis
Impaired Financing Receivable, with Related Allowance, Recorded Investment				$ 2,192,000
Loans and Leases Receivable, Allowance	$ 16,081,000	$ 16,081,000		13,732,000
Other real estate owned, gross				0
Other real estate owned	187,000	187,000
Net recorded investment	$ 3,478,000	3,478,000		$ 2,564,000
Number of other real estate unit sold | item	1
Proceeds from sale of other real estate owned	$ 200,000	232,000	$ 194,000
Consumer and Other
Summary of assets measured on a recurring and nonrecurring basis
Loan Reserved For Specific Allowance | loan				1
Impaired Financing Receivable, with Related Allowance, Recorded Investment				$ 2,000
Nonrecurring
Summary of assets measured on a recurring and nonrecurring basis
Other real estate owned	187,000	187,000
Level 3
Summary of assets measured on a recurring and nonrecurring basis
Impaired Financing Receivable, with Related Allowance, Recorded Investment				2,200,000
Loans and Leases Receivable, Allowance				1,800,000
Provision for loan losses		0		1,800,000
OREO carrying amount	200,000	200,000			$ 400,000
Level 3 | Nonrecurring
Summary of assets measured on a recurring and nonrecurring basis
Other real estate owned	$ 187,000	$ 187,000
Commercial and Industrial | Nonrecurring
Summary of assets measured on a recurring and nonrecurring basis
Net recorded investment				439,000
Commercial and Industrial | Level 3 | Nonrecurring
Summary of assets measured on a recurring and nonrecurring basis
Net recorded investment				$ 439,000