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Balance Sheet Components
 9 Months Ended
Sep. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Balance Sheet Components Balance Sheet Components
Inventory
Inventories consist of the following (in thousands):
September 30,December 31,
20242023
Raw materials$4,260 $4,090 
Work-in-process1,492 627 
Finished goods6,332 6,497 
Total$12,084 $11,214 
Property and Equipment, net
Property and equipment, net consists of the following (in thousands):
September 30,December 31,
20242023
Machinery, equipment, furniture and fixtures$4,609 $4,522 
Computer equipment and software1,932 1,822 
Leasehold improvements2,426 2,426 
8,967 8,770 
Less: Accumulated depreciation(7,926)(7,767)
Property and equipment, net $1,041 $1,003 
Depreciation expense for the three months ended September 30, 2024 and 2023 was $0.1 million and less than $0.1 million, respectively. Depreciation expense for the nine months ended September 30, 2024 and 2023 was $0.2 million and $0.1 million, respectively.
Accrued Liabilities
Accrued liabilities consist of the following (in thousands):
September 30,December 31,
20242023
Payroll and related expenses$7,635 $9,655 
Inventory purchases1,478 588 
Professional fees120 30 
Other839 907 
Total accrued liabilities$10,072 $11,180