CONDENSED CONSOLIDATED INCOME STATEMENTS (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues:	$ 34,479	$ 23,409	$ 91,568	$ 97,003
Cost of goods sold	36,526	18,227	100,952	71,221
Gross profit	(2,047)	5,182	(9,384)	25,782
Operating expenses:
Salaries, benefits and payroll taxes	2,490	2,058	7,150	7,115
Depreciation and amortization	352	440	1,490	1,354
Selling, general and administrative	3,867	3,933	10,876	10,393
Bad debt expense	0	0	19,592	0
Change in the estimated fair value of contingent consideration	0	0	0	(1,020)
Total operating expenses	6,709	6,431	39,108	17,842
Operating (loss) income	(8,756)	(1,249)	(48,492)	7,940
Gain on bargain purchase	0	39,889	0	39,889
Interest expense, net	(467)	(497)	(1,527)	(1,576)
Other income	1,792	80	5,457	162
Total other (expenses) income, net	1,325	39,472	3,930	38,475
(Loss) income before income tax (benefit) expense	(7,431)	38,223	(44,562)	46,415
Income tax (benefit) expense	(169)	1,941	(6,121)	5,576
Net (loss) income	$ (7,262)	$ 36,282	$ (38,441)	$ 40,839
Net (loss) income per common share:
Basic (in dollars per share)	$ (0.17)	$ 0.91	$ (0.92)	$ 1.02
Diluted (in dollars per share)	$ (0.17)	$ 0.91	$ (0.92)	$ 1.02
Weighted-average number of common shares:
Basic (in shares)	41,850	39,973	41,743	39,903
Diluted (in shares)	41,850	39,973	41,743	39,903
Shortfall Revenues [Member]
Revenues:	$ 2,680	$ 6,842	$ 4,421	$ 22,148
Logistics [Member]
Revenues:	456	4,122	3,856	24,046
Sand
Revenues:	$ 31,343	$ 12,445	$ 83,291	$ 50,809