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Condensed Consolidated Balance Sheets (Unaudited) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Current assets:    
Cash and cash equivalents $ 32,645 $ 9,692
Short-term investments 92,709 117,490
Accounts receivable 21,550 20,281
Inventories, net 18,700 17,421
Prepaid and other current assets 2,955 3,523
Total current assets 168,559 168,407
Property and equipment, net 11,617 10,841
Operating leases right-of-use assets 2,052 2,444
Restricted cash 711 711
Other assets 226 147
Total assets 183,165 182,550
Current liabilities:    
Accounts payable 5,057 3,863
Accrued expenses and other current liabilities 11,657 15,239
Lease liabilities 1,614 1,801
Total current liabilities 18,328 20,903
Long-term lease liabilities 908 1,211
Other long-term liabilities 0 74
Total liabilities 19,236 22,188
Commitments and contingencies (Note 9)
Stockholders' deficit:    
Common stock, $0.001 par value, 900,000,000 shares authorized, 37,161,753 shares issued and outstanding as of March 31, 2024 and 36,139,513 shares issued and outstanding as of December 31, 2023 37 36
Preferred stock, $0.001 par value, 100,000,000 shares authorized, no shares issued and outstanding 0 0
Additional paid-in capital 767,685 754,971
Accumulated other comprehensive loss (53) (5)
Accumulated deficit (603,740) (594,640)
Total stockholders' deficit 163,929 160,362
Total liabilities and stockholders' equity $ 183,165 $ 182,550