XML 72 R61.htm IDEA: XBRL DOCUMENT v3.7.0.1
Employee Benefit Plans, Accumulated Post-Retirement Benefit Obligation, Funded Status, and Net Periodic Benefit Cost (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2017
Mar. 31, 2016
Change in benefit obligation        
Benefit obligation at beginning of year $ 1,870 $ 1,967    
Interest cost 19 21    
Benefits paid (32) (30)    
Benefit obligation at end of period 1,857 1,958    
Funded status        
Benefit obligation at end of period (1,870) (1,967) $ (1,857) $ (1,958)
Unamortized loss     102 240
Accrued benefit cost at end of period     $ (1,755) $ (1,718)
Components of net periodic benefit cost        
Interest cost 19 21    
Net periodic benefit cost $ 19 $ 21