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INVESTMENTS (Held-to-Maturity Securities) (Details) - USD ($)
Jun. 30, 2021
Dec. 31, 2020
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost $ 697,000 $ 873,000
Held-to-maturity securities, unrealized gains 57,000 73,000
Held-to-maturity securities, unrealized losses 0 0
Fair Value 754,000 946,000
Agency mortgage backed securities    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized Cost 697,000 873,000
Held-to-maturity securities, unrealized gains 57,000 73,000
Held-to-maturity securities, unrealized losses 0 0
Fair Value $ 754,000 $ 946,000