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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Interest income	$ 74,000	$ 0	$ 189,000	$ 0
Non-accrual loans for no related allowance amortized cost	1,700,000		1,700,000		$ 2,200,000
Minimum loan balance required for collateral-dependent loans	100,000		100,000
Provision expense on its portfolio of outstanding loans	0	1,200,000	0	1,700,000
Loan modifications			0		2,810,000
Consumer
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications					$ 31,000
Consumer | Principal forgiveness
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan paid during period	27,000		34,000
Loan modifications			0
Consumer and land development loans | Principal forgiveness
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan paid during period		20,000		275,000
Allowance for unfunded commitment
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Provision for losses on unfunded commitments	$ (379,000)	$ (63,000)	$ (837,000)	$ (540,000)

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