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Condensed Consolidated Balance Sheets (Unaudited) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Current assets:    
Cash and cash equivalents $ 11,908 $ 17,712
Restricted cash 250 250
Accounts receivable, net 213 401
Inventories, net 2,478 1,982
Prepaid expenses and other current assets 525 828
Total current assets 15,374 21,173
Inventories, noncurrent 1,451 2,194
Property and equipment, net 34 50
Operating lease right of use assets, net 550 565
Other assets, net 891 774
Total assets 18,300 24,756
Current liabilities:    
Accounts payable 2,001 2,129
Accrued expenses and other current liabilities 3,770 4,842
Current portion of operating lease liabilities 77 74
Total current liabilities 5,848 7,045
Noncurrent liabilities:    
Operating lease liabilities, noncurrent 605 625
Total liabilities 6,453 7,670
Commitments and contingencies
Stockholders' equity:    
Preferred Stock, par value $0.001 per share; 10,000,000 shares authorized as of March 31, 2023 and December 31, 2022; 0 shares issued and outstanding at March 31, 2023 and 71,173 issued and outstanding at December 31, 2022 ($0.001 per share liquidation value)
Common Stock, par value $0.001 per share; 500,000,000 shares authorized at March 31, 2023 and December 31, 2022; 4,745,781 shares issued and outstanding at March 31, 2023 and 4,744,886 shares issued and outstanding at December 31, 2022 5 5
Additional paid-in capital 164,092 163,520
Accumulated deficit (152,237) (146,370)
Accumulated other comprehensive (loss) income (13) (69)
Total equity 11,847 17,086
Total liabilities and equity $ 18,300 $ 24,756