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LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Loans - Credit Quality Information (Details) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2023 USD ($) loan	Dec. 31, 2022 USD ($) loan	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Loans and Allowance for Credit Losses - Loans
Non-accrual	$ 581	$ 488	$ 183	$ 338
Troubled debt restructured loans	$ 8	$ 34
Number of TDRs accounts | loan	1	1
Non-performing TDRs	8	34
Number of non-performing TDRs accounts | loan	1	1
Loans and Leases Receivable, Gross	$ 174,796	$ 186,440
Pass
Loans and Allowance for Credit Losses - Loans
Loans and Leases Receivable, Gross	174,212	185,952
Substandard
Loans and Allowance for Credit Losses - Loans
Loans and Leases Receivable, Gross	584	483
Doubtful
Loans and Allowance for Credit Losses - Loans
Loans and Leases Receivable, Gross		5
Real Estate Loan
Loans and Allowance for Credit Losses - Loans
Non-accrual	149	104
Loans and Leases Receivable, Gross	134,032	133,323
Commercial and Industrial
Loans and Allowance for Credit Losses - Loans
Non-accrual	299	299
Loans and Leases Receivable, Gross	16,002	15,148
Consumer Loans
Loans and Allowance for Credit Losses - Loans
Non-accrual	133	85
Loans and Leases Receivable, Gross	24,762	37,969
Construction and Land | Real Estate Loan
Loans and Allowance for Credit Losses - Loans
Loans and Leases Receivable, Gross	4,145	4,499
Construction and Land | Real Estate Loan | Pass
Loans and Allowance for Credit Losses - Loans
Loans and Leases Receivable, Gross	4,145	4,499
Farmland | Real Estate Loan
Loans and Allowance for Credit Losses - Loans
Loans and Leases Receivable, Gross	327	333
Farmland | Real Estate Loan | Pass
Loans and Allowance for Credit Losses - Loans
Loans and Leases Receivable, Gross	327	333
Single-family Residential | Real Estate Loan
Loans and Allowance for Credit Losses - Loans
Non-accrual	149	104	108	123
Troubled debt restructured loans	$ 8	$ 34
Number of TDRs accounts | loan	1	1
Non-performing TDRs	8	34
Number of non-performing TDRs accounts | loan	1	1
Loans and Leases Receivable, Gross	$ 82,998	$ 80,251
Single-family Residential | Real Estate Loan | Pass
Loans and Allowance for Credit Losses - Loans
Loans and Leases Receivable, Gross	82,849	80,147
Single-family Residential | Real Estate Loan | Substandard
Loans and Allowance for Credit Losses - Loans
Loans and Leases Receivable, Gross	149	104
Multi-family | Real Estate Loan
Loans and Allowance for Credit Losses - Loans
Loans and Leases Receivable, Gross	5,201	5,304
Multi-family | Real Estate Loan | Pass
Loans and Allowance for Credit Losses - Loans
Loans and Leases Receivable, Gross	5,201	5,304
Commercial | Real Estate Loan
Loans and Allowance for Credit Losses - Loans
Loans and Leases Receivable, Gross	41,361	42,936
Commercial | Real Estate Loan | Pass
Loans and Allowance for Credit Losses - Loans
Loans and Leases Receivable, Gross	41,361	42,936
Commercial and Industrial | Commercial and Industrial
Loans and Allowance for Credit Losses - Loans
Non-accrual	299	299
Loans and Leases Receivable, Gross	10,032	8,990
Commercial and Industrial | Commercial and Industrial | Pass
Loans and Allowance for Credit Losses - Loans
Loans and Leases Receivable, Gross	9,733	8,691
Commercial and Industrial | Commercial and Industrial | Substandard
Loans and Allowance for Credit Losses - Loans
Loans and Leases Receivable, Gross	299	299
SBA Guaranty | Commercial and Industrial
Loans and Allowance for Credit Losses - Loans
Non-accrual				71
Loans and Leases Receivable, Gross	5,970	6,158
SBA Guaranty | Commercial and Industrial | Pass
Loans and Allowance for Credit Losses - Loans
Loans and Leases Receivable, Gross	5,970	6,158
Consumer | Consumer Loans
Loans and Allowance for Credit Losses - Loans
Loans and Leases Receivable, Gross	1,257	1,521
Consumer | Consumer Loans | Pass
Loans and Allowance for Credit Losses - Loans
Loans and Leases Receivable, Gross	1,257	1,521
Automobile | Consumer Loans
Loans and Allowance for Credit Losses - Loans
Non-accrual	133	85	$ 75	$ 144
Loans and Leases Receivable, Gross	23,505	36,448
Automobile | Consumer Loans | Pass
Loans and Allowance for Credit Losses - Loans
Loans and Leases Receivable, Gross	23,369	36,363
Automobile | Consumer Loans | Substandard
Loans and Allowance for Credit Losses - Loans
Loans and Leases Receivable, Gross	$ 136	80
Automobile | Consumer Loans | Doubtful
Loans and Allowance for Credit Losses - Loans
Loans and Leases Receivable, Gross		$ 5

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