Annual report pursuant to Section 13 and 15(d)

Accrued Expenses - Schedule of Accrued Expenses (Details)

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Accrued Expenses - Schedule of Accrued Expenses (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Payables and Accruals [Abstract]    
Salaries and employee benefits $ 2,988 $ 2,695
Accrued sales, property and other tax 402 265
Interest payable 3 6
Insurance payable 630 675
Other 759 453
Total accrued expenses $ 4,782 $ 4,094