LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Credit Quality Information (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Jun. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 200,698,000	$ 210,392,000
Non-accrual	220,000	338,000	$ 4,109,000	$ 4,512,000
Troubled debt restructures	$ 35,000	$ 36,000
Number of TDRs accounts	1	1
Non-performing TDRs	35,000	36,000
Number of non-performing TDRs accounts	1	1
Loans and Leases Receivable, Gross	$ 200,698,000	$ 210,392,000
Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	200,478,000	206,611,000
Loans and Leases Receivable, Gross	200,478,000	206,611,000
Special mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,000	3,447,000
Loans and Leases Receivable, Gross	4,000	3,447,000
Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	202,000	244,000
Loans and Leases Receivable, Gross	202,000	244,000
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total loans	14,000	90,000
Loans and Leases Receivable, Gross	14,000	90,000
Real Estate Loan
Financing Receivable, Recorded Investment [Line Items]
Total loans	135,175,000	136,705,000
Non-accrual	110,000	123,000
Loans and Leases Receivable, Gross	135,175,000	136,705,000
Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Total loans	15,591,000	17,447,000
Non-accrual		71,000
Loans and Leases Receivable, Gross	15,591,000	17,447,000
Consumer Loans
Financing Receivable, Recorded Investment [Line Items]
Total loans	49,932,000	56,240,000
Non-accrual		144,000
Loans and Leases Receivable, Gross	49,932,000	56,240,000
Construction And Land Development [Member] | Real Estate Loan
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,216,000	4,087,000
Loans and Leases Receivable, Gross	4,216,000	4,087,000
Construction And Land Development [Member] | Real Estate Loan | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,216,000	4,072,000
Loans and Leases Receivable, Gross	4,216,000	4,072,000
Construction And Land Development [Member] | Real Estate Loan | Special mention
Financing Receivable, Recorded Investment [Line Items]
Total loans		15,000
Loans and Leases Receivable, Gross		15,000
Farmland | Real Estate Loan
Financing Receivable, Recorded Investment [Line Items]
Total loans	338,000	342,000
Loans and Leases Receivable, Gross	338,000	342,000
Farmland | Real Estate Loan | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	338,000	342,000
Loans and Leases Receivable, Gross	338,000	342,000
Single-family | Real Estate Loan
Financing Receivable, Recorded Investment [Line Items]
Total loans	80,170,000	78,119,000
Non-accrual	110,000	123,000	134,000	270,000
Troubled debt restructures	$ 35,000	$ 36,000
Number of TDRs accounts	1	1
Non-performing TDRs	35,000	36,000
Number of non-performing TDRs accounts	1	1
Loans and Leases Receivable, Gross	$ 80,170,000	$ 78,119,000
Single-family | Real Estate Loan | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	80,060,000	77,996,000
Loans and Leases Receivable, Gross	80,060,000	77,996,000
Single-family | Real Estate Loan | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	110,000	123,000
Loans and Leases Receivable, Gross	110,000	123,000
Multi-family | Real Estate Loan
Financing Receivable, Recorded Investment [Line Items]
Total loans	5,370,000	5,428,000
Loans and Leases Receivable, Gross	5,370,000	5,428,000
Multi-family | Real Estate Loan | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	5,370,000	5,428,000
Loans and Leases Receivable, Gross	5,370,000	5,428,000
Commercial | Real Estate Loan
Financing Receivable, Recorded Investment [Line Items]
Total loans	45,081,000	48,729,000
Non-accrual			3,837,000	4,029,000
Loans and Leases Receivable, Gross	45,081,000	48,729,000
Commercial | Real Estate Loan | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	45,081,000	45,307,000
Loans and Leases Receivable, Gross	45,081,000	45,307,000
Commercial | Real Estate Loan | Special mention
Financing Receivable, Recorded Investment [Line Items]
Total loans		3,422,000
Loans and Leases Receivable, Gross		3,422,000
Commercial | Consumer Loans
Financing Receivable, Recorded Investment [Line Items]
Total loans	49,932,000
Non-accrual	110,000
Loans and Leases Receivable, Gross	49,932,000
Commercial and industrial | Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Total loans	9,073,000	10,003,000
Loans and Leases Receivable, Gross	9,073,000	10,003,000
Commercial and industrial | Commercial and Industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	9,073,000	10,003,000
Loans and Leases Receivable, Gross	9,073,000	10,003,000
SBA Guaranty | Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Total loans	6,255,000	6,397,000
Non-accrual		71,000
Loans and Leases Receivable, Gross	6,255,000	6,397,000
SBA Guaranty | Commercial and Industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	6,255,000	6,326,000
Loans and Leases Receivable, Gross	6,255,000	6,326,000
SBA Guaranty | Commercial and Industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans		71,000
Loans and Leases Receivable, Gross		71,000
Comm SBA PPP | Commercial and Industrial
Financing Receivable, Recorded Investment [Line Items]
Total loans	263,000	1,047,000
Loans and Leases Receivable, Gross	263,000	1,047,000
Comm SBA PPP | Commercial and Industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	263,000	1,047,000
Loans and Leases Receivable, Gross	263,000	1,047,000
Consumer and Indirect | Consumer Loans
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,939,000	2,090,000
Non-accrual				34,000
Loans and Leases Receivable, Gross	1,939,000	2,090,000
Consumer and Indirect | Consumer Loans | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,939,000	2,084,000
Loans and Leases Receivable, Gross	1,939,000	2,084,000
Consumer and Indirect | Consumer Loans | Special mention
Financing Receivable, Recorded Investment [Line Items]
Total loans		6,000
Loans and Leases Receivable, Gross		6,000
Automobile | Consumer Loans
Financing Receivable, Recorded Investment [Line Items]
Total loans	47,993,000	54,150,000
Non-accrual	110,000	144,000	$ 138,000	$ 179,000
Loans and Leases Receivable, Gross	47,993,000	54,150,000
Automobile | Consumer Loans | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	47,883,000	54,006,000
Loans and Leases Receivable, Gross	47,883,000	54,006,000
Automobile | Consumer Loans | Special mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,000	4,000
Loans and Leases Receivable, Gross	4,000	4,000
Automobile | Consumer Loans | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	92,000	50,000
Loans and Leases Receivable, Gross	92,000	50,000
Automobile | Consumer Loans | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total loans	14,000	90,000
Loans and Leases Receivable, Gross	$ 14,000	$ 90,000