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Interest Bearing Deposits (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Interest Bearing Deposits (Textual)    
Interest-bearing time deposits in denominations of $250,000 or more $ 11,100 $ 7,400
Certificates of deposit obtained from brokers $ 12,700 5,200
Deposits maturity date Between 2017 and 2021.  
Time deposits certificate of deposit account registry service $ 61,600 $ 37,100
Cash FDIC insured 250,000  
Cash CDARS program insured 250,000  
State bank Program $ 250,000