FAIR VALUE - Fair value hierarchy of financial instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Financial assets - Carrying Amount
Cash and cash equivalents	$ 51,366
Loans receivable, net	198,460	$ 207,922
Cash value of life insurance	8,414
Financial liabilities - Carrying Amount
Deposits	385,765	383,247
Long-term debt	10,000	10,000
Short-term debt	10,000	10,000
Financial assets - Fair Value
Loans receivable, net	194,236	211,541
Financial liabilities - Fair Value
Deposits	384,964	383,910
Long-term debt	9,993	9,888
Short-term debt	10,001	$ 10,000
Fair Value
Financial assets - Fair Value
Cash and cash equivalents	51,366
Loans receivable, net	194,236
Cash value of life insurance	8,414
Financial liabilities - Fair Value
Deposits	384,964
Long-term debt	9,993
Short-term debt	10,001
Fair Value | Level 1
Financial assets - Fair Value
Cash and cash equivalents	51,366
Fair Value | Level 2
Financial assets - Fair Value
Cash value of life insurance	8,414
Financial liabilities - Fair Value
Deposits	384,964
Long-term debt	9,993
Short-term debt	10,001
Fair Value | Level 3
Financial assets - Fair Value
Loans receivable, net	$ 194,236