CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Revenues	$ 210,745	$ 188,756
Cost of sales (exclusive of depreciation and amortization shown below)	201,165	200,351
Depreciation and amortization	32,269	41,730
Gross loss	(22,689)	(53,325)
Selling, general and administrative expenses (exclusive of depreciation and amortization shown below)	39,227	39,981
Depreciation and amortization	2,336	2,552
Other operating (income) expense	(332)	125,778
Operating loss	(66,575)	(248,383)
Other expense:
Interest expense, net	(8,503)	(7,700)
Other income, net	537	940
Nonoperating income (expense), total	(7,966)	(6,760)
Loss before income taxes	(74,541)	(255,143)
Income tax expense (benefit)	892	(2,027)
Net loss	$ (75,433)	$ (253,116)
Loss per share:
Basic	$ (2.79)	$ (9.49)
Diluted	$ (2.79)	$ (9.49)
Millen, Georgia Facility
Loss on sale of business	$ 2,305	$ 0
Russian Proppant
Loss on sale of business	$ 350	$ 26,747