Selected Balance Sheet Information (Schedule of Accrued Expenses) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Selected balance sheet information
Bonuses	$ 3,621	$ 3,335
401(k) employer match	1,106
Paid time off	947	770
Customer rebates	592	411
Accrued interest payable	437	220
Operating lease liability, current portion	$ 282	$ 231
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Total accrued expenses	Total accrued expenses
Clinical trial and other professional fees	$ 182	$ 277
Taxes	135	125
Other	878	611
Total accrued expenses	$ 8,180	$ 5,980