Stock-Based Compensation - Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total share-based compensation expense	$ 296	$ 265
Unvested Stock Option
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized compensation	$ 1,500
Weighted average period	2 years 2 months 12 days
Restricted stock units
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized compensation	$ 500
Weighted average period	2 years 3 months 18 days
Research and development expenses
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total share-based compensation expense	$ 43	31
General and administrative expenses
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total share-based compensation expense	$ 253	$ 234