Quarterly report pursuant to Section 13 or 15(d)

Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Details) (Parenthetical)

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Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Details) (Parenthetical) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2017
Dec. 31, 2016
Payables and Accruals [Abstract]    
Estimated penalties and interest $ 300 $ 300
Accrued payroll taxes $ 1,869 $ 1,863