Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2019	0	20,140
Balance at Dec. 31, 2019	$ 0	$ 20	$ 303,401	$ 430	$ (30,057)	$ 273,794
Public offering of common stock, net (in shares)	0	4,470
Public offering of common stock, net	$ 0	$ 4	39,306	0	0	39,310
Stock options exercised, net of shares withheld for employee tax (in shares)	0	3
Stock options exercised, net of shares withheld for employee tax	$ 0	$ 0	30	0	0	30
Issuance of restricted stock, net of shares withheld for employee tax (in shares)	0	497
Issuance of restricted stock, net of shares withheld for employee tax	$ 0	$ 1	(1,098)	0	0	(1,097)
Share-based compensation	0	0	13,046	0	0	13,046
Foreign currency translation adjustment	0	0	0	11,260	0	11,260
Net loss	$ 0		0		(58,452)	(58,452)
Balance (in shares) at Dec. 31, 2020	0	25,110
Balance at Dec. 31, 2020	$ 0	$ 25	354,685	11,690	(88,509)	277,891
Public offering of common stock, net (in shares)	0	1,552
Public offering of common stock, net	$ 0	$ 1	15,288	0	0	15,289
Stock options exercised, net of shares withheld for employee tax (in shares)	0	2
Stock options exercised, net of shares withheld for employee tax	$ 0	$ 0	8	0	0	8
Issuance of restricted stock, net of shares withheld for employee tax (in shares)	0	659
Issuance of restricted stock, net of shares withheld for employee tax	$ 0	$ 1	(959)	0	0	(958)
Share-based compensation	0	0	12,121	0	0	12,121
Foreign currency translation adjustment	0	0	0	4,381	0	4,381
Net loss	$ 0				(54,162)	(54,162)
Balance (in shares) at Dec. 31, 2021	0	27,323
Balance at Dec. 31, 2021	$ 0	$ 27	381,143	16,071	(142,671)	254,570
Public offering of common stock, net (in shares)	0	437
Public offering of common stock, net	$ 0	$ 1	1,237	0	0	$ 1,238
Stock options exercised, net of shares withheld for employee tax (in shares)						(0)
Stock options exercised, net of shares withheld for employee tax	$ 0	$ 0	0	0	0	$ 0
Issuance of restricted stock, net of shares withheld for employee tax (in shares)	0	862
Issuance of restricted stock, net of shares withheld for employee tax	$ 0	$ 1	(454)	0	0	(453)
Share-based compensation	0	0	9,600	0	0	9,600
Foreign currency translation adjustment	0	0	0	(13,888)	0	(13,888)
Net loss	$ 0	$ 0	0	0	(66,397)	(66,397)
Balance (in shares) at Dec. 31, 2022	0	28,622
Balance at Dec. 31, 2022	$ 0	$ 29	$ 391,526	$ 2,183	$ (209,068)	$ 184,670