CONDENSED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 2,518	$ 5,395
Accounts receivable, net	214	95
Prepaid expenses and other current assets	360	388
Inventory, net	880	795
Total current assets	3,972	6,673
Right to use assets, operating leases	39	210
Property and equipment, net	380	388
Other noncurrent assets	58	22
Total assets	4,449	7,293
Current liabilities:
Accounts payable	128	150
Accrued expenses	394	368
Current portion of operating lease liability	41	217
Current portion of notes payable	53	33
Deferred revenue	12	18
Total current liabilities	628	786
Notes payable, less current portion	170	156
Total liabilities	798	942
Commitments and contingencies (see notes)
Stockholders’ equity:
Preferred stock, $0.001 par value, 10,000,000 shares authorized, none issued and outstanding	0	0
Common stock, $0.001 par value, 100,000,000 shares authorized, 1,020,842 shares issued and 1,012,549 shares outstanding as of September 30, 2024 and 514,003 shares issued and outstanding as of December 31, 2023	1	1
Additional paid-in capital	138,492	136,263
Accumulated deficit	(134,842)	(129,913)
Total stockholders’ equity	3,651	6,351
Total liabilities and stockholders’ equity	$ 4,449	$ 7,293