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Stock Based Compensation Schedule of Employee Stock Ownership Plans (ESOP) Disclosure (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Employee Stock Ownership Plan (ESOP), Shares in ESOP [Abstract]      
ESOP Compensation Expense $ 1,200 $ 900 $ 800
Allocated Shares, in shares 713,814    
Shares Released for Allocation During 2012, in shares 36,927    
Unallocated Shares, in shares 19,466    
Total ESOP Shares, in shares 770,207    
Market Value of Unallocated ESOP Shares $ 789