LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Non-accrual loans (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Financing Receivable Nonaccrual Status
Balance	$ 527	$ 488
Transfer into nonaccrual	191	452
Loans paid down/payoffs	(86)	(286)
Loans returned to accrual status		(16)
Loans charged off	(339)	(57)
Balance	293	581
Real Estate Loan
Financing Receivable Nonaccrual Status
Balance	145
Balance	230
Real Estate Loan | Single-family Residential
Financing Receivable Nonaccrual Status
Balance	145	104
Transfer into nonaccrual		307
Loans paid down/payoffs	(44)	(262)
Balance	101	149
Real Estate Loan | Commercial
Financing Receivable Nonaccrual Status
Transfer into nonaccrual	141
Loans paid down/payoffs	(12)
Balance	129
Commercial and Industrial
Financing Receivable Nonaccrual Status
Balance	299
Commercial and Industrial | Commercial and Industrial
Financing Receivable Nonaccrual Status
Balance	299	299
Loans charged off	(299)
Balance		299
Consumer Loans
Financing Receivable Nonaccrual Status
Balance	83
Balance	63
Consumer Loans | Automobile
Financing Receivable Nonaccrual Status
Balance	83	85
Transfer into nonaccrual	50	145
Loans paid down/payoffs	(30)	(24)
Loans returned to accrual status		(16)
Loans charged off	(40)	(57)
Balance	$ 63	$ 133