Stock-Based Compensation, Components of Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Stock-Based Compensation Expense [Abstract]
Total stock-based compensation expense	$ 2,261	$ 2,867
Research and Development [Member]
Stock-Based Compensation Expense [Abstract]
Total stock-based compensation expense	829	810
General and Administrative [Member]
Stock-Based Compensation Expense [Abstract]
Total stock-based compensation expense	$ 1,432	$ 2,057