Property and Equipment, net - Property and Equipment, net (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Property and Equipment, net [Abstract]
Property and equipment, gross	$ 35,997	$ 36,209
Less: accumulated depreciation and amortization	(27,393)	(26,148)
Property and equipment, net	8,604	10,061
Lasers Placed-In-Service [Member]
Property and Equipment, net [Abstract]
Property and equipment, gross	33,990	33,489
Equipment, Computer Hardware and Software [Member]
Property and Equipment, net [Abstract]
Property and equipment, gross	300	300
Furniture and Fixtures [Member]
Property and Equipment, net [Abstract]
Property and equipment, gross	240	240
Leasehold Improvements [Member]
Property and Equipment, net [Abstract]
Property and equipment, gross	199	87
Lasers-In-Process [Member]
Property and Equipment, net [Abstract]
Property and equipment, gross	$ 1,268	$ 2,093