Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Total
Balance at the beginning of period at Dec. 31, 2021	$ 4	$ 519,206	$ 1,371	$ (340,475)	$ 180,106
Balance at the beginning of period (in shares) at Dec. 31, 2021	43,694,716
Increase (Decrease) in Stockholders' Equity
Exercise of stock options		32			32
Exercise of stock options (in shares)	16,000
Stock-based compensation expense		5,091			5,091
Stock-based compensation expense (in shares)	7,449
Foreign currency translation			311		311
Net loss				(28,068)	(28,068)
Balance at the end of period at Mar. 31, 2022	$ 4	524,329	1,682	(368,543)	157,472
Balance at the end of period (in shares) at Mar. 31, 2022	43,718,165
Balance at the beginning of period at Dec. 31, 2021	$ 4	519,206	1,371	(340,475)	180,106
Balance at the beginning of period (in shares) at Dec. 31, 2021	43,694,716
Increase (Decrease) in Stockholders' Equity
Net loss					(69,199)
Balance at the end of period at Jun. 30, 2022	$ 4	537,962	3,104	(409,674)	131,396
Balance at the end of period (in shares) at Jun. 30, 2022	43,720,038
Balance at the beginning of period at Mar. 31, 2022	$ 4	524,329	1,682	(368,543)	157,472
Balance at the beginning of period (in shares) at Mar. 31, 2022	43,718,165
Increase (Decrease) in Stockholders' Equity
Stock-based compensation expense		13,633			13,633
Stock-based compensation expense (in shares)	1,873
Foreign currency translation			1,422		1,422
Net loss				(41,131)	(41,131)
Balance at the end of period at Jun. 30, 2022	$ 4	537,962	3,104	(409,674)	131,396
Balance at the end of period (in shares) at Jun. 30, 2022	43,720,038
Balance at the beginning of period at Dec. 31, 2022	$ 4	543,929	1,331	(436,043)	109,221
Balance at the beginning of period (in shares) at Dec. 31, 2022	43,670,109
Increase (Decrease) in Stockholders' Equity
Stock-based compensation expense		5,304			5,304
Stock-based compensation expense (in shares)	7,658
Foreign currency translation			(306)		(306)
Net loss				(6,390)	(6,390)
Balance at the end of period at Mar. 31, 2023	$ 4	549,233	1,025	(442,433)	107,829
Balance at the end of period (in shares) at Mar. 31, 2023	43,677,767
Balance at the beginning of period at Dec. 31, 2022	$ 4	543,929	1,331	(436,043)	109,221
Balance at the beginning of period (in shares) at Dec. 31, 2022	43,670,109
Increase (Decrease) in Stockholders' Equity
Net loss					(12,692)
Balance at the end of period at Jun. 30, 2023	$ 4	552,369	1,043	(448,735)	104,681
Balance at the end of period (in shares) at Jun. 30, 2023	43,620,192
Balance at the beginning of period at Mar. 31, 2023	$ 4	549,233	1,025	(442,433)	107,829
Balance at the beginning of period (in shares) at Mar. 31, 2023	43,677,767
Increase (Decrease) in Stockholders' Equity
Retirement of treasury shares - refer to Note 10		(480)			(480)
Retirement of treasury shares - refer to Note 10 (in shares)	(58,763)
Stock-based compensation expense		3,616			3,616
Stock-based compensation expense (in shares)	1,188
Foreign currency translation			18		18
Net loss				(6,302)	(6,302)
Balance at the end of period at Jun. 30, 2023	$ 4	$ 552,369	$ 1,043	$ (448,735)	$ 104,681
Balance at the end of period (in shares) at Jun. 30, 2023	43,620,192