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INVESTMENT SECURITIES - Fair Value to Amortized Cost (Details)	9 Months Ended		12 Months Ended
	Sep. 30, 2025 USD ($) security item	Sep. 30, 2024 USD ($) security	Dec. 31, 2024 USD ($) item
Securities Available-for-Sale
Amortized Cost	$ 48,206,000		$ 33,215,000
Gross Unrealized Gains	134,000		22,000
Gross Unrealized Losses	(3,487,000)		(4,525,000)
Fair Value	44,853,000		28,712,000
Securities Held-to-Maturity
Amortized cost	14,945,000		13,447,000
Gross Unrealized Gains	77,000
Gross Unrealized Losses	(1,558,000)		(2,163,000)
Fair Value	13,464,000		11,284,000
Securities transferred between classifications	$ 0	$ 0
Debt securities available-for-sale | security	0	50
Loss on sales of investment securities		$ 5,507,000
Accrued interest receivable on investment securities	$ 169,000		$ 142,000
Number of securities in unrealized loss position | item	0		0
Percentage of aggregate book value in excess of the Company's shareholders' equity	10.00%		10.00%
Asset Pledged as Collateral | Deposits
Securities Available-for-Sale
Fair Value	$ 25,500,000		$ 15,100,000
Securities Held-to-Maturity
Custodial letter of credit	20,000,000		25,000,000
Mortgage-backed securities
Securities Available-for-Sale
Amortized Cost	46,507,000		31,511,000
Gross Unrealized Gains	116,000		18,000
Gross Unrealized Losses	(3,321,000)		(4,327,000)
Fair Value	43,302,000		27,202,000
U.S. Government and agency obligations
Securities Held-to-Maturity
Amortized cost	13,000,000		13,000,000
Gross Unrealized Losses	(1,547,000)		(2,140,000)
Fair Value	11,453,000		10,860,000
Municipal obligations
Securities Available-for-Sale
Amortized Cost	1,699,000		1,704,000
Gross Unrealized Gains	18,000		4,000
Gross Unrealized Losses	(166,000)		(198,000)
Fair Value	1,551,000		1,510,000
Securities Held-to-Maturity
Amortized cost	1,945,000		447,000
Gross Unrealized Gains	77,000
Gross Unrealized Losses	(11,000)		(23,000)
Fair Value	$ 2,011,000		$ 424,000

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