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Employee Benefit Plans (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract]      
Defined contribution plan, eligibiilty, minimum employee age 21 years    
Defined contribution plan, eligibility, minimum employee service time for participation eligibility 6 months    
Defined contribution plan, employer discretionary contribution amount $ 50 $ 50 $ 50
Deferred Compensation Arrangements [Abstract]      
Deferred compensation liability 700 600  
Deferred compensation assets $ 1,800 $ 1,700