Accrued Liabilities (Tables)

6 Months Ended

Jun. 30, 2014

Payables and Accruals [Abstract]

Schedule of accrued liabilities

Accrued liabilities at June 30, 2014 and December 31, 2013 consisted of the following:

	June 30, 2014		December 31, 2013
Accrued salaries, wages and benefits	$	5,775	$	3,604
Accrual for self-insurance liabilities	5,715		5,787
Property taxes	1,320		584
Sales taxes	358		481
Other accrued expenses	1,325		959
	$	14,493	$	11,415