Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Underwritten Public Offering [Member]	ATM [Member]	LPC [Member]	KIQ Acquisition [Member]	Preferred Stock [Member] Series A Non-Voting Convertible Preferred Stock [Member]	Preferred Stock [Member] Series A Non-Voting Convertible Preferred Stock [Member] KIQ Acquisition [Member]	Common Stock [Member]	Common Stock [Member] Underwritten Public Offering [Member]	Common Stock [Member] ATM [Member]	Common Stock [Member] LPC [Member]	Common Stock [Member] KIQ Acquisition [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] Underwritten Public Offering [Member]	Additional Paid-in Capital [Member] ATM [Member]	Additional Paid-in Capital [Member] LPC [Member]	Additional Paid-in Capital [Member] KIQ Acquisition [Member]	Accumulated Deficit [Member]
Beginning Balances at Dec. 31, 2019	$ 31,762							$ 8					$ 155,646					$ (123,892)
Beginning Balances, Shares at Dec. 31, 2019								7,665,763
Conversion of preferred stock into common stock						$ (27,351)		$ 7					27,344
Conversion of preferred stock into common stock, Shares						(31,081)		7,770,250
Issuance of common stock upon exercise of stock options	512												512
Issuance of common stock upon exercise of stock options, Shares								384,125
Issuance of common stock under Employee Stock Purchase Plan	48												48
Issuance of common stock under Employee Stock Purchase Plan, shares								22,545
Issuance of common stock as a commitment fee				$ 262												$ 262
Issuance of common stock as a commitment fee, Shares											181,595
Issuance of common stock upon RSU vesting, Shares								56,933
Issuance of common stock				$ 25,000							$ 2					$ 24,998
Issuance of common stock, Shares											2,412,870
Issuance of common stock, net of issuance costs		$ 107,730							$ 12					$ 107,718
Issuance of common stock, net of issuance costs, Shares									11,794,872
Issuance of non-voting preferred stock and common stock in connection with the Kiq acquisition					$ 44,813		$ 39,325					$ 2					$ 5,486
Issuance of Series A non-voting preferred stock and common stock in connection with the Kiq acquisition, Shares							44,687					1,558,975
Issuance preferred stock, net of issuance costs	98,907					$ 98,907
Issuance of preferred stock, net of issuance costs, Shares						118,638
Issuance of common stock to settle CVR liability	6,944							$ 1					6,943
Issuance of common stock to settle CVR liability, Shares								707,938
Acquisition and retirement of treasury stock	(808)												(808)
Acquisition and retirement of treasury stock, shares								(207,961)
Dividend payable to common stockholders	(11,450)												(11,450)
Discount on Series A non-voting preferred stock related to beneficial conversion feature						$ (104,400)							104,400
Recognition of beneficial conversion feature upon shareholder approval of conversion						104,400							(104,400)
Stock-based compensation expense	5,755												5,755
Net loss	(74,808)																	(74,808)
Ending Balances at Dec. 31, 2020	234,667					$ 110,881		$ 32					322,454					(198,700)
Ending Balances, Shares at Dec. 31, 2020						132,244		32,347,905
Conversion of preferred stock into common stock						$ (25,481)		$ 8					25,473
Conversion of preferred stock into common stock, Shares						(28,955)		7,238,750
Issuance of common stock for services	260												260
Issuance of common stock for services, Shares								31,683
Issuance of common stock upon exercise of stock options	24												24
Issuance of common stock upon exercise of stock options, Shares								15,758
Issuance of common stock under Employee Stock Purchase Plan	31												31
Issuance of common stock under Employee Stock Purchase Plan, shares								4,497
Issuance of common stock, net of issuance costs			$ 38,006							$ 4					$ 38,002
Issuance of common stock, net of issuance costs, Shares										3,954,900
Issuance of common stock to settle CVR liability	2,043												2,043
Issuance of common stock to settle CVR liability, Shares								212,429
Stock-based compensation expense	11,426												11,426
Net loss	(72,273)																	(72,273)
Ending Balances at Dec. 31, 2021	$ 214,184					$ 85,400		$ 44					$ 399,713					$ (270,973)
Ending Balances, Shares at Dec. 31, 2021						103,289		43,805,922