Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current assets
Cash and cash equivalents	$ 68,077	$ 51,178
Accounts receivable, net	41,713	36,818
Inventory	23,032	17,640
Other current assets	3,789	5,183
Total current assets	136,611	110,819
Property, plant & equipment, net	94,516	94,187
Intangibles, net	12,645	15,118
Goodwill	15,714	15,714
Other long-term assets	21,535	20,060
Total assets	281,021	255,898
Current liabilities
Current portion of long-term debt	2,750	3,650
Revolving line of credit	0	0
Accounts payable	18,756	18,940
Accrued expenses and other liabilities	24,581	21,249
Total current liabilities	46,087	43,839
Asset retirement obligations	10,151	9,370
Long-term debt, net	265,523	274,460
Other long-term liabilities	37,176	34,745
Total liabilities	358,937	362,414
Commitments and contingencies (See Note 12)
Stockholders’ deficit
Preferred stock ($0.01 par value, 25,000 shares authorized; no shares issued and outstanding)	0	0
Common stock ($0.01 par value, 250,000 shares authorized; 37,498 and 36,756 shares issued and outstanding, respectively)	375	367
Additional paid-in capital	228,934	226,462
Accumulated deficit	(306,139)	(332,398)
Accumulated other comprehensive loss	(1,086)	(947)
Total stockholders’ deficit	(77,916)	(106,516)
Total liabilities and stockholders’ deficit	$ 281,021	$ 255,898