Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plan (Narrative) (Details)

v3.3.1.900
Employee Benefit Plan (Narrative) (Details) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Compensation And Retirement Disclosure [Abstract]      
Expenses related to employee benefits plan $ 124,000 $ 125,000 $ 104,000