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CONDENSED BALANCE SHEETS (Unaudited) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Current assets:    
Cash and cash equivalents $ 25,466 $ 14,674
Accounts receivable, net of allowance of $30 and $56, respectively 3,223 6,040
Notes receivable, net of allowance of $12 and $4, respectively 595 200
Inventories 18,152 11,740
Prepaid and other current assets 1,728 1,062
Total current assets 49,164 33,716
Property and equipment, net 605 563
Equipment under lease, net 6,159 6,316
Notes and other receivables, long-term, net of allowance of $25 and $9, respectively 1,221 442
Intangible assets, net 11,571 12,122
Other assets 2,476 2,685
Total assets 71,196 55,844
Current liabilities:    
Accounts payable 4,619 5,422
Accrued liabilities 4,321 4,700
Deferred revenue 1,067 768
Operating lease liabilities 549 531
Total current liabilities 10,556 11,421
Long-term operating lease liabilities 2,033 2,272
Warrant liabilities 11,602  
Other long-term liabilities 568 167
Total liabilities 24,759 13,860
Commitments and contingencies (Note 9)
Series A Redeemable Convertible Preferred Stock, par value $0.01 per share, 20 and no shares authorized at June 30, 2023 and December 31, 2022, respectively; 20 and no shares issued and outstanding at June 30, 2023 and December 31, 2022, respectively; aggregate liquidation preference of $20,000 and $0 at June 30, 2023 and December 31, 2022, respectively 13,747
Stockholders’ equity:    
Preferred stock, par value $0.01 per share, 9,980 and 10,000 shares authorized at June 30, 2023 and December 31, 2022, respectively; no shares issued and outstanding at June 30, 2023 and December 31, 2022
Common stock, par value $0.01 per share, 150,000 shares authorized at June 30, 2023 and December 31, 2022; 11,199 and 11,093 shares issued and outstanding at June 30, 2023 and December 31, 2022, respectively 112 111
Additional paid-in capital 143,111 139,381
Accumulated deficit (110,533) (97,508)
Total stockholders’ equity 32,690 41,984
Total liabilities, convertible preferred stock, and stockholders' equity $ 71,196 $ 55,844