Stock-Based Compensation - Expense (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Stock-Based Compensation
Share-based compensation costs	$ 358	$ 1,556	$ 793	$ 1,736
Research and development
Stock-Based Compensation
Share-based compensation costs	51	648	130	134
Selling, general and administrative
Stock-Based Compensation
Share-based compensation costs	$ 307	$ 908	$ 663	$ 1,602

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details