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Condensed consolidated balance sheets - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
Current assets:    
Cash and cash equivalents $ 18,906 $ 16,911
Short-term investments 22,764 33,821
Accounts receivable 4,521 7,519
Inventory 20,722 20,200
Prepaid expenses and other current assets 2,269 2,466
Total current assets 69,182 80,917
Property and equipment, net 10,563 11,193
Right-of-use assets, net 4,903 5,163
Other long-term assets 421 531
Restricted cash 365 365
Total assets 85,434 98,169
Current liabilities:    
Accounts payable 2,635 2,535
Accrued expenses and other current liabilities 5,034 7,217
Deferred revenue 6,092 6,599
Lease liabilities, short-term 1,235 1,214
Total current liabilities 14,996 17,565
Lease liabilities, long-term 4,641 4,954
Other long-term liabilities 306 298
Total liabilities 19,943 22,817
Commitments and contingencies (Note 14)
Stockholders’ equity:    
Preferred stock, $0.01 par value: 10,000,000 shares authorized at March 31, 2025 and December 31, 2024; zero shares issued and outstanding at March 31, 2025 and December 31, 2024 0 0
Additional paid-in capital 551,578 550,157
Accumulated deficit (486,537) (475,274)
Accumulated other comprehensive income 13 39
Total stockholders’ equity 65,491 75,352
Total liabilities and stockholders’ equity 85,434 98,169
Class A Common stock    
Stockholders’ equity:    
Common stock 392 377
Class B Common stock    
Stockholders’ equity:    
Common stock $ 45 $ 53