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Condensed Balance Sheets (unaudited) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Current assets    
Cash and cash equivalents $ 6,720 $ 6,605
Short-term investments 60,895 70,804
Accounts receivable 9,194 7,482
Inventory 10,750 9,712
Prepaid expenses and other current assets 2,597 3,111
Total current assets 90,156 97,714
Property and equipment, net 1,024 1,064
Operating lease right-of-use asset 14,491 14,838
Restricted cash 122 122
Deferred offering costs 457 347
Other assets 21 21
Total assets 106,271 114,106
Current liabilities    
Accounts payable 1,829 2,147
Accrued liabilities 6,580 7,414
Operating lease liability 1,466 1,415
Total current liabilities 9,875 10,976
Long-term debt 53,859 52,913
Operating lease liability, net of current portion 15,047 15,440
Total liabilities 78,781 79,329
Commitments and Contingencies
Stockholders’ equity    
Preferred stock, $0.001 par value, 10,000,000 shares authorized and no shares issued and outstanding as of March 31, 2023 and December 31, 2022 0 0
Common stock, $0.001 par value, 200,000,000 shares authorized as of March 31, 2023 and December 31, 2022; 25,352,204 and 25,045,751 shares issued and outstanding as of March 31, 2023 and December 31, 2022, respectively 25 25
Additional paid-in capital 508,693 506,713
Accumulated other comprehensive loss 0 (1,108)
Accumulated deficit (481,228) (470,853)
Total stockholders’ equity 27,490 34,777
Total liabilities and stockholders’ equity $ 106,271 $ 114,106