Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash and Cash Equivalents [Abstract]
Cash and Due From Banks	$ 56,529	$ 42,562
Interest-Bearing Deposits at Banks	27,710	30,276
Total Cash and Cash Equivalents	84,239	72,838	$ 57,355	$ 51,068
Total required reserves, including vault cash and Federal Reserve Bank deposits	$ 40,677	$ 30,771