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Fair Value Measurements (Details 1) - Pooled trust preferred securities - Significant Unobservable Inputs (Level 3) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Dec. 31, 2015
Reconciliation for all assets and liabilities measured at fair value on a recurring basis        
Beginning Balance $ 1,506 $ 1,595 $ 1,572 $ 6,321
Included in Other Comprehensive Income 41 12 (17) 20
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales     0 (4,679)
Settlements (9) (21) (17) (76)
Ending Balance $ 1,538 $ 1,586 $ 1,538 $ 1,572