UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	ProFrac Agreement	Common Stock	Treasury Stock	Additional Paid-in Capital	Additional Paid-in Capital ProFrac Agreement	Accumulated Other Comprehensive Income	Accumulated Deficit
Beginning balance at Dec. 31, 2021	$ 20,192		$ 8	$ (34,100)	$ 363,417		$ 81	$ (309,214)
Beginning balance (in shares) at Dec. 31, 2021			79,484,000
Beginning balance (in shares) at Dec. 31, 2021				6,022,000
Increase (Decrease) in Equity
Net (loss) income	(4,484)							(4,484)
Foreign currency translation adjustment	95						95
Stock issued under employee stock purchase plan	24				24
Stock issued under employee stock purchase plan (in shares)				(19,000)
Restricted stock granted (in shares)			626,000
Restricted stock forfeited (in shares)			(3,000)	20,000
Stock compensation expense	1,591				1,591
Shares withheld to cover taxes	(138)			$ (138)
Shares withheld to cover taxes (in shares)			(15,000)	88,000
Issuance of warrants	9,930				9,930
Equity contribution	8,400				8,400
Conversion of convertible notes payable to Common Stock	2,948				2,948
Conversion of notes to common stock (in shares)			2,793,000
Ending balance at Jun. 30, 2022	38,558		$ 8	$ (34,238)	386,310		176	(313,698)
Ending balance (in shares) at Jun. 30, 2022			82,885,000
Ending balance (in shares) at Jun. 30, 2022				6,111,000
Beginning balance at Mar. 31, 2022	13,104		$ 8	$ (34,159)	367,104		89	(319,938)
Beginning balance (in shares) at Mar. 31, 2022			82,564,000
Beginning balance (in shares) at Mar. 31, 2022				6,073,000
Increase (Decrease) in Equity
Net (loss) income	6,240							6,240
Foreign currency translation adjustment	87						87
Stock issued under employee stock purchase plan	24				24
Stock issued under employee stock purchase plan (in shares)				(19,000)
Restricted stock granted (in shares)			339,000
Restricted stock forfeited (in shares)			(3,000)	12,000
Stock compensation expense	852				852
Shares withheld to cover taxes	(79)			$ (79)
Shares withheld to cover taxes (in shares)			(15,000)	45,000
Issuance of warrants	9,930				9,930
Equity contribution	8,400				8,400
Ending balance at Jun. 30, 2022	38,558		$ 8	$ (34,238)	386,310		176	(313,698)
Ending balance (in shares) at Jun. 30, 2022			82,885,000
Ending balance (in shares) at Jun. 30, 2022				6,111,000
Beginning balance at Dec. 31, 2022	$ 2,596		$ 8	$ (34,251)	388,177		181	(351,519)
Beginning balance (in shares) at Dec. 31, 2022	83,915,918		83,916,000
Beginning balance (in shares) at Dec. 31, 2022	6,127,527			6,127,000
Increase (Decrease) in Equity
Net (loss) income	$ 21,322							21,322
Foreign currency translation adjustment	(34)						(34)
Stock issued under employee stock purchase plan	33				33
Stock issued under employee stock purchase plan (in shares)				(43,000)
Restricted stock granted (in shares)			15,000
Restricted stock forfeited (in shares)			(40,000)	379,000
Restricted stock units vested (in shares)			496,000
Forfeited stock options purchased	(617)				(617)
Stock compensation expense	(836)				(836)
Shares withheld to cover taxes	(229)			$ (229)
Shares withheld to cover taxes (in shares)				214,000
Issuance of warrants		$ 15,092				$ 15,092
Conversion of Amended ProFrac Agreement Contract Consideration Convertible Notes Payable to Common Stock (in shares)			63,497,000
Conversion of Amended ProFrac Agreement Contract Consideration Convertible Notes Payable to Common Stock	40,638		$ 6		40,632
Conversion of convertible notes payable to Pre-Funded Warrants	11,040				11,040
Conversion of convertible notes payable to Common Stock	8,997		$ 1		8,996
Conversion of notes to common stock (in shares)			10,336,000
Ending balance at Jun. 30, 2023	$ 98,002		$ 15	$ (34,480)	462,517		147	(330,197)
Ending balance (in shares) at Jun. 30, 2023	158,220,075		158,220,000
Ending balance (in shares) at Jun. 30, 2023	6,678,629			6,677,000
Beginning balance at Mar. 31, 2023	$ 57,138		$ 9	$ (34,451)	421,596		160	(330,176)
Beginning balance (in shares) at Mar. 31, 2023			94,614,000
Beginning balance (in shares) at Mar. 31, 2023				6,442,000
Increase (Decrease) in Equity
Net (loss) income	(21)							(21)
Foreign currency translation adjustment	(13)						(13)
Stock issued under employee stock purchase plan	13				13
Stock issued under employee stock purchase plan (in shares)				(22,000)
Restricted stock forfeited (in shares)				214,000
Restricted stock units vested (in shares)			109,000
Stock compensation expense	276				276
Shares withheld to cover taxes	(29)			$ (29)
Shares withheld to cover taxes (in shares)				43,000
Conversion of Amended ProFrac Agreement Contract Consideration Convertible Notes Payable to Common Stock (in shares)			63,497,000
Conversion of Amended ProFrac Agreement Contract Consideration Convertible Notes Payable to Common Stock	40,638		$ 6		40,632
Ending balance at Jun. 30, 2023	$ 98,002		$ 15	$ (34,480)	$ 462,517		$ 147	$ (330,197)
Ending balance (in shares) at Jun. 30, 2023	158,220,075		158,220,000
Ending balance (in shares) at Jun. 30, 2023	6,678,629			6,677,000