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Deposits (Details 2) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Banking and Thrift [Abstract]      
Interest bearing transaction $ 3,348 $ 1,537 $ 646
Savings and money market 35,534 17,284 12,038
Time, $100,000 or more 17,138 7,294 6,487
Other time 4,190 1,171 77
Total $ 60,210 $ 27,286 $ 19,248