Employee Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Summary of employee benefits charged to operating expenses
Payroll taxes	$ 296	$ 329
Medical plans	512	508
401k match and profit sharing	181	272
Pension plan	307	348
Other	16	19
Total employee benefits	$ 1,312	$ 1,476