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Loans (Details 2) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Receivables [Abstract]      
Beginning balance $ 65 $ 93 $ 170
New loans purchased 32 0 0
Accretion of income (32) (28) (77)
Ending balance $ 65 $ 65 $ 93