Condensed Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 5,901	$ 5,275
Accounts receivable, net of allowance for doubtful accounts of $56 and $41 at September 30, 2024 and December 31, 2023, respectively	877	1,014
Inventories, net	3,759	5,298
Prepaid expenses and other current assets	947	575
Total current assets	11,484	12,162
Right of use asset	1,427	1,102
Property and equipment, net	466	487
Other assets	224	19
Total assets	13,601	13,770
Current liabilities:
Accounts payable	921	777
Accrued compensation	1,962	2,311
Preferred stock dividends payable	653	0
Accrued expenses and other current liabilities	589	817
Leasehold liability, current portion	1,210	1,102
Borrowings	4,168	14,293
Total current liabilities	9,503	19,300
Leasehold liability, long-term portion	217	0
Other long-term liabilities	6	672
Total liabilities	9,726	19,972
Commitments and contingencies (Note 6)
Stockholders’ equity (deficit):
Preferred stock issuable in series, par value of $0.001; Shares authorized: 5,000,000 at September 30, 2024 and December 31, 2023; Shares issued and outstanding: 30,229 and 62,881 at September 30, 2024 and December 31, 2023, respectively; aggregate liquidation preference of $18,338 and $62,796 at September 30, 2024 and December 31, 2023, respectively	0	0
Common stock, par value of $0.001; Shares authorized: 100,000,000 at September 30, 2024 and December 31, 2023; Shares issued and outstanding: 2,783,891 and 1,279,928 at September 30, 2024 and December 31, 2023, respectively	3	1
Additional paid-in capital	438,153	414,493
Accumulated deficit	(434,281)	(420,696)
Total stockholders’ equity (deficit)	3,875	(6,202)
Total liabilities and stockholders’ equity (deficit)	$ 13,601	$ 13,770