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, 2020	51,221
Balance at Dec. 31, 2020	$ 5	$ 191,348	$ 0	$ (151,408)	$ 39,945
Vesting of share-based awards (in shares)	92
Vesting of share-based awards	$ 0	0	0	0	0
Stock-based compensation	0	948	0	0	948
Net loss	$ 0	0	0	(7,422)	(7,422)
Balance (in shares) at Mar. 31, 2021	51,313
Balance at Mar. 31, 2021	$ 5	192,296	0	(158,830)	33,471
Balance (in shares) at Dec. 31, 2020	51,221
Balance at Dec. 31, 2020	$ 5	191,348	0	(151,408)	39,945
Net loss					(69,200)
Unrealized loss on marketable securities					0
Balance (in shares) at Sep. 30, 2021	61,760
Balance at Sep. 30, 2021	$ 6	244,490	0	(220,608)	23,888
Balance (in shares) at Mar. 31, 2021	51,313
Balance at Mar. 31, 2021	$ 5	192,296	0	(158,830)	33,471
Vesting of share-based awards (in shares)	88
Vesting of share-based awards	$ 0	0	0	0	0
Stock-based compensation	0	908	0	0	908
Net loss	$ 0	0	0	(55,804)	(55,804)
Common shares issued for TRIGR acquisition (in shares)	10,265
Common shares issued for TRIGR acquisition	$ 1	50,299	0	0	50,300
Balance (in shares) at Jun. 30, 2021	61,666
Balance at Jun. 30, 2021	$ 6	243,503	0	(214,634)	28,875
Vesting of share-based awards (in shares)	94
Vesting of share-based awards	$ 0	0	0	0	0
Stock-based compensation	0	987	0	0	987
Net loss	$ 0	0	0	(5,975)	(5,975)
Unrealized loss on marketable securities					0
Balance (in shares) at Sep. 30, 2021	61,760
Balance at Sep. 30, 2021	$ 6	244,490	0	(220,608)	23,888
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
Net loss					(27,631)
Unrealized loss on marketable securities					$ (641)
Exercise of common stock options (in shares)					2
Balance (in shares) at Sep. 30, 2022	101,032
Balance at Sep. 30, 2022	$ 10	377,967	(641)	(261,220)	$ 116,116
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
Net loss	0	0	0	(8,494)	(8,494)
Unrealized loss on marketable securities	$ 0	0	(512)	0	(512)
Balance (in shares) at Jun. 30, 2022	100,968
Balance at Jun. 30, 2022	$ 10	376,675	(512)	(249,245)	126,928
Vesting of share-based awards (in shares)	62
Vesting of share-based awards	$ 0	0	0	0	0
Stock-based compensation	0	1,287	0	0	1,287
Net loss	0	0	0	(11,975)	(11,975)
Unrealized loss on marketable securities	$ 0	0	(129)	0	(129)
Exercise of common stock options (in shares)	2
Exercise of common stock options	$ 0	5	0	0	5
Balance (in shares) at Sep. 30, 2022	101,032
Balance at Sep. 30, 2022	$ 10	$ 377,967	$ (641)	$ (261,220)	$ 116,116