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+ References

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Amount of cost to be recognized for option under share-based payment arrangement.

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Stock-Based Compensation - Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Stock-Based Compensation
Share-based compensation costs recognized	$ 4,014	$ 4,483	$ 15,015	$ 12,790
Research and development
Stock-Based Compensation
Share-based compensation costs recognized	1,645	1,105	4,840	3,310
Selling, general and administrative
Stock-Based Compensation
Share-based compensation costs recognized	2,369	$ 3,378	10,175	$ 9,480
Stock options
Stock-Based Compensation
Unrecognized compensation expense	$ 19,557		$ 19,557
Remaining unamortized expense period			1 year 7 months 6 days