LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES - Major Categories of Loans (Details) - USD ($)	6 Months Ended
Jun. 30, 2021	Dec. 31, 2020
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	$ 234,871,000	$ 253,772,000
Less: Allowance for credit losses (1)	(2,887,000)	(1,476,000)
Loans, net	$ 231,984,000	$ 252,296,000
Loans and lease receivable allowances, percentage	100.00%	100.00%
Increase (decrease) in loans and leases receivable	$ (20,300,000)
Percentage of increase (decrease) in loans and leases receivable	(8.05%)
Real Estate Loan
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	$ 147,491,000	$ 148,555,000
Less: Allowance for credit losses (1)		(781,000)
Commercial and Industrial
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	21,428,000	27,912,000
Less: Allowance for credit losses (1)		(115,000)
Consumer Loans
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	65,952,000	77,305,000
Less: Allowance for credit losses (1)		(580,000)
Construction and land \| Real Estate Loan
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	$ 3,895,000	2,553,000
Less: Allowance for credit losses (1)		$ (10,000)
Loans and lease receivable allowances, percentage	2.00%	1.00%
Increase (decrease) in loans and leases receivable	$ 1,300,000
Percentage of increase (decrease) in loans and leases receivable	52.56%
Farmland \| Real Estate Loan
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	$ 347,000	$ 350,000
Less: Allowance for credit losses (1)		(2,000)
Loans and lease receivable allowances, percentage	0.00%
Increase (decrease) in loans and leases receivable	$ (3,000)
Percentage of increase (decrease) in loans and leases receivable	(1.00%)
Single-family residential \| Real Estate Loan
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	$ 79,684,000	82,520,000
Less: Allowance for credit losses (1)		$ (512,000)
Loans and lease receivable allowances, percentage	34.00%	33.00%
Increase (decrease) in loans and leases receivable	$ (2,800,000)
Percentage of increase (decrease) in loans and leases receivable	(3.44%)
Multifamily \| Real Estate Loan
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	$ 5,709,000	$ 6,105,000
Less: Allowance for credit losses (1)		$ (39,000)
Loans and lease receivable allowances, percentage	3.00%	2.00%
Increase (decrease) in loans and leases receivable	$ (400,000)
Percentage of increase (decrease) in loans and leases receivable	(6.48%)
Commercial \| Real Estate Loan
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	$ 57,856,000	$ 57,027,000
Less: Allowance for credit losses (1)		$ (218,000)
Loans and lease receivable allowances, percentage	25.00%	23.00%
Increase (decrease) in loans and leases receivable	$ 800,000
Percentage of increase (decrease) in loans and leases receivable	1.45%
Commercial \| Consumer Loans
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	$ 65,952,000
Commercial and industrial \| Commercial and Industrial
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	$ 9,008,000	$ 10,800,000
Less: Allowance for credit losses (1)		$ (67,000)
Loans and lease receivable allowances, percentage	4.00%	4.00%
Increase (decrease) in loans and leases receivable	$ (1,800,000)
Percentage of increase (decrease) in loans and leases receivable	(16.59%)
SBA Guaranty \| Commercial and Industrial
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	$ 7,183,000	$ 7,200,000
Less: Allowance for credit losses (1)		$ (48,000)
Loans and lease receivable allowances, percentage	3.00%	3.00%
Comm SBA PPP \| Commercial and Industrial
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	$ 5,237,000	$ 9,912,000
Loans and lease receivable allowances, percentage	2.00%	4.00%
Increase (decrease) in loans and leases receivable	$ (4,700,000)
Percentage of increase (decrease) in loans and leases receivable	(47.17%)
Consumer \| Consumer Loans
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	$ 2,373,000	$ 3,063,000
Less: Allowance for credit losses (1)		$ (11,000)
Loans and lease receivable allowances, percentage	1.00%	1.00%
Increase (decrease) in loans and leases receivable	$ (700,000)
Percentage of increase (decrease) in loans and leases receivable	(22.53%)
Automobile \| Consumer Loans
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	$ 63,579,000	$ 74,242,000
Less: Allowance for credit losses (1)		$ (569,000)
Loans and lease receivable allowances, percentage	26.00%	29.00%
Increase (decrease) in loans and leases receivable	$ (10,700,000)
Percentage of increase (decrease) in loans and leases receivable	(14.36%)

The increase (decrease) during the reporting period in amount of loans and leases receivables.

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The percentage of increase (decrease) in loans and leases receivable.

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The Percentage of Loans and Leases Receivable Allowance.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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