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Fair Value (Details 1) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Reconciliation for all assets measured at fair value on a recurring basis using significant unobservable inputs        
Beginning Balance $ 11 $ 14 $ 12 $ 15
Total unrealized gains or losses:        
Included in other comprehensive income 0 0 0 0
Transfers from level 2 0 1,806 0 1,806
Repayments, calls and maturities (1) 0 (2) (1)
Ending Balance $ 10 $ 1,820 $ 10 $ 1,820