CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	ATM Facility Member	Share-based Payment Arrangement [Member]	IPO [Member]	Common Stock [Member]	Common Stock [Member] IPO [Member]	Additional Paid-In Capital [Member]	Additional Paid-In Capital [Member] ATM Facility Member	Additional Paid-In Capital [Member] Share-based Payment Arrangement [Member]	Additional Paid-In Capital [Member] IPO [Member]	Shares in Treasury [Member]	Accumulated Deficit [Member]
Beginning balance at Dec. 31, 2020	$ 36,875				$ 4		$ 204,807				$ (1,043)	$ (166,893)
Beginning balance, shares at Dec. 31, 2020					37,065,044
Net loss	(22,142)											(22,142)
Stock-based compensation	865						865
Issuance of common stock and payment of minimum employee taxes withheld upon net share settlement of restricted stock units, shares			236,680
Issuance of common stock and payment of minimum employee taxes withheld upon net share settlement of restricted stock units, amount			$ 227						$ 227
Ending balance at Sep. 30, 2021	15,825				$ 4		205,899				(1,043)	(189,035)
Ending balance, shares at Sep. 30, 2021					37,301,724
Beginning balance at Jun. 30, 2021	21,896				$ 4		204,663				(1,043)	(181,728)
Beginning balance, shares at Jun. 30, 2021					37,205,473
Net loss	(7,307)											(7,307)
Stock-based compensation	1,236						1,236
Issuance of common stock and payment of minimum employee taxes withheld upon net share settlement of restricted stock units, shares			96,251
Issuance of common stock and payment of minimum employee taxes withheld upon net share settlement of restricted stock units, amount			$ 0						0
Ending balance at Sep. 30, 2021	15,825				$ 4		205,899				(1,043)	(189,035)
Ending balance, shares at Sep. 30, 2021					37,301,724
Beginning balance at Dec. 31, 2021	14,132				$ 4		211,263				(1,043)	(196,092)
Beginning balance, shares at Dec. 31, 2021					38,773,994
Net loss	(14,054)											(14,054)
Stock-based compensation	2,890						2,890
Issuance of common stock		$ (7)		$ 5,051		$ 1		$ (7)		$ 5,050
Issuance of common stock, shares				3,880,000
Issuance of common stock upon exercise of pre-funded warrants				3,880,000
Issuance of common stock and payment of minimum employee taxes withheld upon net share settlement of restricted stock units, shares			275,274
Cumulative Effect Of Adoption Of Lease Accounting Standard	832											832
Ending balance at Sep. 30, 2022	8,844				$ 5		219,196				(1,043)	(209,314)
Ending balance, shares at Sep. 30, 2022					46,809,268
Beginning balance at Jun. 30, 2022	13,759				$ 5		218,161				(1,043)	(203,364)
Beginning balance, shares at Jun. 30, 2022					46,715,542
Net loss	(5,950)											(5,950)
Stock-based compensation	1,035						1,035
Issuance of common stock and payment of minimum employee taxes withheld upon net share settlement of restricted stock units, shares			93,726
Issuance of common stock and payment of minimum employee taxes withheld upon net share settlement of restricted stock units, amount			$ 0						$ 0
Ending balance at Sep. 30, 2022	$ 8,844				$ 5		$ 219,196				$ (1,043)	$ (209,314)
Ending balance, shares at Sep. 30, 2022					46,809,268