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LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Current, Past Due, and Non-Accrual Loans by Categories of loans and Restructured Loans (Details) - USD ($)	Sep. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Dec. 31, 2023
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	$ 215,320,000	$ 205,219,000
Nonaccrual	1,201,000	360,000	$ 293,000	$ 527,000
Total	215,320,000	205,219,000
Allowance for loan losses	2,568,000	2,839,000		2,157,000
Nonaccrual with specific reserves	0
Current
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	213,489,000	202,979,000
30 To 89 Days Past Due
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	630,000	1,880,000
Loans Secured by Real Estate
Loans and Allowance for Credit Losses - Loans
Nonaccrual	1,001,000	273,000
Total	160,091,000	161,938,000
Loans Secured by Real Estate \| Current
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	159,008,000	160,563,000
Loans Secured by Real Estate \| 30 To 89 Days Past Due
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	82,000	1,102,000
Loans Secured by Real Estate \| Construction and land
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	4,480,000	8,882,000
Total	4,480,000	8,882,000
Allowance for loan losses	23,000	40,000		31,000
Loans Secured by Real Estate \| Construction and land \| Current
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	4,480,000	8,882,000
Loans Secured by Real Estate \| Farmland
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	308,000	315,000
Total	308,000	315,000
Allowance for loan losses	11,000	16,000		18,000
Loans Secured by Real Estate \| Farmland \| Current
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	308,000	315,000
Loans Secured by Real Estate \| Single-family residential
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	103,440,000	98,993,000
Nonaccrual	890,000	149,000	101,000	145,000
Total	103,440,000	98,993,000
Allowance for loan losses	1,408,000	1,529,000		1,290,000
Loans Secured by Real Estate \| Single-family residential \| Current
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	102,499,000	97,742,000
Loans Secured by Real Estate \| Single-family residential \| 30 To 89 Days Past Due
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	51,000	1,102,000
Loans Secured by Real Estate \| Multi-family
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	4,909,000	5,022,000
Total	4,909,000	5,022,000
Allowance for loan losses	61,000	224,000		96,000
Loans Secured by Real Estate \| Multi-family \| Current
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	4,909,000	5,022,000
Loans Secured by Real Estate \| Commercial
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	46,954,000	48,726,000
Nonaccrual	111,000	124,000	129,000
Total	46,954,000	48,726,000
Allowance for loan losses	327,000	507,000		190,000
Loans Secured by Real Estate \| Commercial \| Current
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	46,812,000	48,602,000
Loans Secured by Real Estate \| Commercial \| 30 To 89 Days Past Due
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	31,000
Commercial and Industrial
Loans and Allowance for Credit Losses - Loans
Total	31,141,000	22,396,000
Commercial and Industrial \| Current
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	31,141,000	21,924,000
Commercial and Industrial \| 30 To 89 Days Past Due
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current		472,000
Commercial and Industrial \| Commercial and industrial
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	25,679,000	16,705,000
Nonaccrual				299,000
Total	25,679,000	16,705,000
Allowance for loan losses	470,000	272,000		304,000
Commercial and Industrial \| Commercial and industrial \| Current
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	25,679,000	16,233,000
Commercial and Industrial \| Commercial and industrial \| 30 To 89 Days Past Due
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current		472,000
Commercial and Industrial \| SBA guaranty
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	5,462,000	5,691,000
Total	5,462,000	5,691,000
Allowance for loan losses	30,000	38,000		21,000
Commercial and Industrial \| SBA guaranty \| Current
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	5,462,000	5,691,000
Consumer Loans
Loans and Allowance for Credit Losses - Loans
Nonaccrual	200,000	87,000
Total	24,088,000	20,885,000
Consumer Loans \| Current
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	23,340,000	20,492,000
Consumer Loans \| 30 To 89 Days Past Due
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	548,000	306,000
Consumer Loans \| Consumer
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current		2,880,000
Total	2,571,000	2,880,000
Allowance for loan losses		45,000		30,000
Consumer Loans \| Consumer \| Current
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	2,532,000	2,879,000
Consumer Loans \| Consumer \| 30 To 89 Days Past Due
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	39,000	1,000
Consumer Loans \| Automobile
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	21,486,000	18,005,000
Nonaccrual	200,000	87,000	$ 63,000	83,000
Total	21,486,000	18,005,000
Allowance for loan losses	202,000	168,000		$ 177,000
Consumer Loans \| Automobile \| Current
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	20,777,000	17,613,000
Consumer Loans \| Automobile \| 30 To 89 Days Past Due
Loans and Allowance for Credit Losses - Loans
Financing Receivable, Recorded Investment, Current	$ 509,000	$ 305,000