Balance Sheet Components (Accrued Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Balance Sheet Components [Abstract]
Accrued payroll and related expenses	$ 15,216	$ 13,898
Operating lease liability	1,844	1,294
Accrued royalty expense	973	687
Accrued professional services	781	2,039
Accrued travel expenses	775	590
Provision for sales returns	540	359
Accrued interest payable	519	14
Deferred revenue	253	157
Accrued clinical expenses	249	99
Accrued other expenses	815	665
Total	$ 21,965	$ 19,802