Accrued Liabilities (Tables)

6 Months Ended

Jun. 30, 2017

Payables and Accruals [Abstract]

Schedule of accrued liabilities

Accrued liabilities at June 30, 2017 and December 31, 2016 consisted of the following:

	June 30, 2017		December 31, 2016
Accrued salaries, wages and benefits	$	9,409	$	10,818
Accrual for insurance liabilities	5,538		5,223
Property taxes	929		1,615
Sales taxes	1,237		1,722
Interest	—		19
Other accrued expenses	358		549
Total accrued liabilities	$	17,471	$	19,946