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Loans (Details 2) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Receivables [Abstract]        
Beginning balance $ 132 $ 209 $ 170 $ 247
New loans purchased 0 0 0 0
Accretion of income (19) (19) (57) (57)
Ending balance $ 113 $ 190 $ 113 $ 190