Other Current Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Other Current Assets Disclosure [Abstract]
Prepaid Expense, Current	$ 9,507	$ 8,290
Sales taxes receivable from customers	60	120
Due from prior owners of acquired businesses re: working capital settlements	967	1,021
Research and development tax credits receivable	388	898
Payroll taxes overpayment receivable	229	0
Other Receivables	511	613
Other current assets	$ 11,662	$ 10,942