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Employee Benefit Plans (Detail Textuals) - Retirement Income Plan - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]      
Benefit obligation exceeds fair value of the plan assets $ (9,570) $ (11,957)  
Employer contribution 4,300 850  
Accumulated other comprehensive loss, before tax $ 1,240 $ (2,411) $ 10,214
Percentage of investment for long term growth 70.00%    
Percentage for near term benefit payments 30.00%