Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock Outstanding [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2021	100,832
Balance at Dec. 31, 2021	$ 10	$ 373,657	$ 0	$ (233,589)	$ 140,078
Vesting of share-based awards (in shares)	73
Vesting of share-based awards	$ 0	0	0	0	0
Stock-based compensation	0	1,574	0	0	1,574
Net loss	$ 0	0	0	(7,162)	(7,162)
Balance (in shares) at Mar. 31, 2022	100,905
Balance at Mar. 31, 2022	$ 10	375,231	0	(240,751)	134,490
Balance (in shares) at Dec. 31, 2021	100,832
Balance at Dec. 31, 2021	$ 10	373,657	0	(233,589)	140,078
Unrealized loss on marketable securities					(512)
Net loss					(15,656)
Balance (in shares) at Jun. 30, 2022	100,968
Balance at Jun. 30, 2022	$ 10	376,675	(512)	(249,245)	126,928
Balance (in shares) at Mar. 31, 2022	100,905
Balance at Mar. 31, 2022	$ 10	375,231	0	(240,751)	134,490
Vesting of share-based awards (in shares)	63
Vesting of share-based awards	$ 0	0	0	0	0
Stock-based compensation	0	1,444	0	0	1,444
Unrealized loss on marketable securities	0	0	(512)	0	(512)
Net loss	$ 0	0	0	(8,494)	(8,494)
Balance (in shares) at Jun. 30, 2022	100,968
Balance at Jun. 30, 2022	$ 10	376,675	(512)	(249,245)	126,928
Balance (in shares) at Dec. 31, 2022	126,302
Balance at Dec. 31, 2022	$ 13	454,741	(302)	(272,814)	181,638
Vesting of share-based awards (in shares)	61
Vesting of share-based awards	$ 0	0	0	0	0
Stock-based compensation	$ 0	1,267	0	0	1,267
Common stock issued upon exercise of options (in shares)	12
Common stock issued upon exercise of options	$ 0	41	0	0	41
Unrealized loss on marketable securities	0	0	156	0	156
Net loss	$ 0	0	0	(7,837)	(7,837)
Balance (in shares) at Mar. 31, 2023	126,375
Balance at Mar. 31, 2023	$ 13	456,049	(146)	(280,651)	175,265
Balance (in shares) at Dec. 31, 2022	126,302
Balance at Dec. 31, 2022	$ 13	454,741	(302)	(272,814)	$ 181,638
Common stock issued upon exercise of options (in shares)					12
Unrealized loss on marketable securities					$ (205)
Net loss					(19,115)
Balance (in shares) at Jun. 30, 2023	127,388
Balance at Jun. 30, 2023	$ 13	460,709	(507)	(291,929)	168,286
Balance (in shares) at Mar. 31, 2023	126,375
Balance at Mar. 31, 2023	$ 13	456,049	(146)	(280,651)	175,265
Vesting of share-based awards (in shares)	61
Vesting of share-based awards	$ 0	0	0	0	0
Stock-based compensation	0	1,628	0	0	1,628
Unrealized loss on marketable securities	0	0	(361)	0	(361)
Net loss	$ 0	0	0	(11,278)	(11,278)
Common shares issued, net of issuance costs of $0.1 million (in shares)	952
Common shares issued, net of issuance costs of $0.1 million	$ 0	3,032	0	0	3,032
Balance (in shares) at Jun. 30, 2023	127,388
Balance at Jun. 30, 2023	$ 13	$ 460,709	$ (507)	$ (291,929)	$ 168,286