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Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Current assets:    
Cash and cash equivalents $ 36,493 $ 62,391
Accounts receivable, net 6,551 6,077
Prepaid expenses and other current assets 4,797 4,143
Total current assets 47,841 72,611
Property and equipment, net 5,201 8,197
Operating lease right-of-use assets 3,286 4,885
Other assets 616 528
Total assets 56,944 86,221
Current liabilities:    
Accounts payable 3,131 3,046
Operating lease liabilities 976 1,040
Borrowings-current portion 264 190
Accrued and other current liabilities 7,531 5,347
Total current liabilities 11,902 9,623
Borrowings-non-current portion, net of discounts and debt issuance costs 19,231 28,778
Non-current operating lease liabilities 2,760 4,493
Other non-current liabilities 357 867
Total liabilities 34,250 43,761
Commitments and contingencies
Stockholders' equity:    
Preferred stock, $0.001 par value per share; 10,000,000 shares authorized, no shares issued or outstanding at December 31, 2023 and December 31, 2022 0 0
Common stock, $0.001 par value per share; 200,000,000 shares authorized at December 31, 2023 and December 31, 2022; 17,045,954 and 16,549,984 shares issued and outstanding at December 31, 2023 and December 31, 2022, respectively 17 17
Additional paid-in capital 301,893 297,970
Accumulated deficit (279,216) (255,527)
Total stockholders' equity 22,694 42,460
Total liabilities and stockholders' equity $ 56,944 $ 86,221