Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Schedule of Long-term Debt (Details) (Parenthetical)

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Long-Term Debt - Schedule of Long-term Debt (Details) (Parenthetical) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2018
Dec. 31, 2017
Debt issuance costs net $ 88 $ 115
Revolving Credit [Member]    
Debt due date Mar. 24, 2021  
Effective interest rate 5.50%  
Term Loan [Member]    
Debt due date Mar. 24, 2021  
Effective interest rate 5.40% 5.40%
Principal amount $ 102 $ 102
Capital Lease [Member]    
Debt interest rate 11.90% 11.90%