CONDENSED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 7,278	$ 1,307
Short-term investments	2,970	0
Accounts receivable, net	454	335
Inventory, net	767	794
Prepaid expenses and other current assets	313	377
Total current assets	11,782	2,813
Right to use asset, operating lease	2,377	0
Property and equipment, net	429	407
Other noncurrent assets	36	58
Total assets	14,624	3,278
Current liabilities:
Accounts payable	238	215
Accrued expenses	333	278
Current portion of operating lease liability	95	0
Current portion of notes payable	60	56
Deferred revenue	22	12
Total current liabilities	748	561
Operating lease liability, less current portion	2,368	0
Notes payable, less current portion	160	206
Total liabilities	3,276	767
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, 5,223,015 and 1,035,893 shares issued and outstanding as of September 30, 2025 and December 31, 2024, respectively	5	1
Additional paid-in capital	152,019	138,607
Accumulated deficit	(140,676)	(136,097)
Total stockholders’ equity	11,348	2,511
Total liabilities and stockholders’ equity	$ 14,624	$ 3,278