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Condensed consolidated balance sheets - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Current assets:    
Cash and cash equivalents $ 14,687 $ 20,030
Short-term investments 5,079 18,266
Accounts receivable 5,515 3,134
Inventory, net 18,918 17,593
Prepaid expenses and other current assets 2,063 2,145
Total current assets 46,262 61,168
Property and equipment, net 8,161 8,972
Right-of-use assets 3,565 4,109
Other long-term assets 178 319
Restricted cash 284 284
Total assets 58,450 74,852
Current liabilities:    
Accounts payable 5,177 4,139
Accrued expenses and other current liabilities 6,123 8,316
Deferred revenue 5,508 4,734
Lease liabilities, short-term 1,342 1,298
Total current liabilities 18,150 18,487
Notes payable, net 19,139 18,902
Warrant liability 68 186
Lease liabilities, long-term 2,997 3,674
Other long-term liabilities 348 397
Total liabilities 40,702 41,646
Commitments and contingencies (Note 15)
Stockholders’ equity:    
Preferred stock, $0.01 par value: 10,000,000 shares authorized at June 30, 2026 and December 31, 2025; 0 shares issued and outstanding at June 30, 2026 and December 31, 2025 0 0
Additional paid-in capital 566,844 555,147
Accumulated deficit (549,595) (522,397)
Accumulated other comprehensive (loss) income (1) 11
Total stockholders’ equity 17,748 33,206
Total liabilities and stockholders’ equity 58,450 74,852
Class A Common stock    
Stockholders’ equity:    
Common stock 455 400
Class B Common stock    
Stockholders’ equity:    
Common stock $ 45 $ 45