Correction to Previously Issued Unaudited Interim Condensed Consolidated Financial Statements (Details 3) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accounts receivable	$ (4,587)	$ (2,491)
Accounts payable and accrued expenses	$ (6,944)	1,537
Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accounts receivable		(4,960)
Accounts payable and accrued expenses		4,006
Restatement Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accounts receivable		(2,469)
Accounts payable and accrued expenses		$ 2,469