Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Assets
Cash and cash equivalents	$ 2,965	$ 2,533
Accounts receivable, net	23,728	18,056
Inventories	3,087	2,710
Assets held for sale	3,898	4,637
Prepaid expenses and other current assets	4,188	2,957
Total current assets	37,866	30,893
Property, plant and equipment, net	277,978	272,388
Other long-term assets, net	1,763	1,364
Total assets	317,607	304,645
Liabilities
Current portion of long-term debt	575	533
Accounts payable	12,573	11,627
Accrued liabilities	8,912	6,969
Total current liabilities	22,060	19,129
Long-term debt	68,631	49,278
Deferred income taxes, net	563	683
Other long-term liabilities	632	73
Total liabilities	91,886	69,163
Commitments and contingencies (Note 11)
Stockholders’ equity
Common stock, $0.01 par value, 100,000,000 shares authorized; 38,597,447 and 38,246,919 shares issued, respectively; and 38,252,765 and 37,985,225 shares outstanding, respectively	383	380
Additional paid-in capital	328,598	326,616
Accumulated deficit	(101,041)	(89,645)
Treasury stock, at cost, 344,682 and 261,694 shares, respectively	(2,219)	(1,869)
Total stockholders’ equity	225,721	235,482
Total liabilities and stockholders’ equity	$ 317,607	$ 304,645