Restatement of Financial Statements (Details 3) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	[1]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accounts receivable, net	$ 25,026	$ 21,735
Total current assets	79,846	103,296
Total assets	194,466	183,226
Accrued expenses	16,372	10,349
Total current liabilities	25,237	14,963
Accumulated deficit	(53,973)	(44,903)
Total stockholders’ equity	50,527	56,667
Total liabilities and stockholders' equity	194,466	$ 183,226
Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accounts receivable, net	27,568
Total current assets	82,388
Total assets	197,008
Accrued expenses	16,260
Total current liabilities	25,125
Accumulated deficit	(51,319)
Total stockholders’ equity	53,181
Total liabilities and stockholders' equity	197,008
Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accounts receivable, net	(2,542)
Total current assets	(2,542)
Total assets	(2,542)
Accrued expenses	112
Total current liabilities	112
Accumulated deficit	(2,654)
Total stockholders’ equity	(2,654)
Total liabilities and stockholders' equity	$ (2,542)

[1] Derived from the audited December 31, 2016 financial statements