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Summary of Significant Accounting Policies (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Summary Of Significant Accounting Policies Details    
Unrealized gains on available for sale securities $ 1,632 $ 1,401
Unrealized gains on post-retirement benefits 191 225
Tax effect (620) (553)
Accumulated other comprehensive income $ 1,203 $ 1,073