LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES - Current, Past Due, and Non-Accrual Loans by Categories of loans and Restructured Loans (Details) - USD ($)	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	$ 230,317,000	$ 247,976,000
Non-accrual	4,109,000	4,512,000	$ 3,941,000	$ 4,127,000
Total	234,871,000	253,772,000
Allowance for loan loss	2,887,000	1,476,000		2,066,000
Financing Receivables 30 To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	430,000	1,266,000
Financing Receivables, Equal to Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 Days or More and Still Accruing	15,000	18,000
Real Estate Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	143,505,000	143,485,000
Non-accrual	3,971,000	4,299,000
Total	147,491,000	148,555,000
Real Estate Loan | Financing Receivables 30 To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		753,000
Real Estate Loan | Financing Receivables, Equal to Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 Days or More and Still Accruing	15,000	18,000
Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	21,357,000	27,912,000
Total	21,428,000	27,912,000
Commercial and Industrial | Financing Receivables 30 To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	71,000
Consumer Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current		76,579,000
Non-accrual		213,000
Total	65,952,000	77,305,000
Consumer Loans | Financing Receivables 30 To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		513,000
Construction and land | Real Estate Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	3,895,000	2,553,000
Total	3,895,000	2,553,000
Allowance for loan loss	42,000	9,000		24,000
Farmland | Real Estate Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	347,000	350,000
Total	347,000	350,000
Allowance for loan loss	10,000	2,000		2,000
Single-family residential | Real Estate Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	79,535,000	82,232,000
Non-accrual	134,000	270,000	651,000	790,000
Total	79,684,000	82,520,000
Allowance for loan loss	1,239,000	513,000		849,000
Single-family residential | Real Estate Loan | Financing Receivables, Equal to Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 Days or More and Still Accruing	15,000	18,000
Multifamily | Real Estate Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	5,709,000	6,105,000
Non-accrual			19,000	24,000
Total	5,709,000	6,105,000
Allowance for loan loss	98,000	39,000		40,000
Commercial | Real Estate Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	54,019,000	52,245,000
Non-accrual	3,837,000	4,029,000	3,072,000	3,139,000
Total	57,856,000	57,027,000
Allowance for loan loss	441,000	218,000		241,000
Commercial | Real Estate Loan | Financing Receivables 30 To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		753,000
Commercial | Consumer Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	65,455,000
Non-accrual	138,000
Total	65,952,000
Commercial | Consumer Loans | Financing Receivables 30 To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	359,000
Commercial and industrial | Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	9,008,000	10,800,000
Total	9,008,000	10,800,000
Allowance for loan loss	162,000	67,000		69,000
SBA Guaranty | Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	7,112,000	7,200,000
Total	7,183,000	7,200,000
Allowance for loan loss	16,000	48,000		25,000
SBA Guaranty | Commercial and Industrial | Financing Receivables 30 To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	71,000
Comm SBA PPP | Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	5,237,000	9,912,000
Total	5,237,000	9,912,000
Consumer | Consumer Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	2,366,000	3,028,000
Non-accrual		34,000	45,000	51,000
Total	2,373,000	3,063,000
Allowance for loan loss	72,000	11,000		11,000
Consumer | Consumer Loans | Financing Receivables 30 To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	7,000	1,000
Automobile | Consumer Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	63,089,000	73,551,000
Non-accrual	138,000	179,000	$ 154,000	123,000
Total	63,579,000	74,242,000
Allowance for loan loss	807,000	569,000		$ 805,000
Automobile | Consumer Loans | Financing Receivables 30 To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	$ 352,000	$ 512,000