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Segment Information - Summary of Operating Result Information for Each Reportable Segment (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Revenue    
Revenue $ 17,508 $ 19,265
Cost of goods sold    
Cost of goods sold 2,414 2,793
Gross profit    
Gross profit 15,094 16,472
Operating expense (28,953) (31,195)
Loss from operations (13,859) (14,723)
Investment income 1,148 1,648
Interest expense (1,263) (1,204)
Loss on debt extinguishment 0 (1,962)
Other income (expense), net (139) (8)
Loss before income taxes (14,113) (16,249)
Surgical Glaucoma    
Revenue    
Revenue 17,114 18,257
Cost of goods sold    
Cost of goods sold 2,298 2,209
Gross profit    
Gross profit 14,816 16,048
Dry Eye    
Revenue    
Revenue 394 1,008
Cost of goods sold    
Cost of goods sold 116 584
Gross profit    
Gross profit $ 278 $ 424