CONDENSED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 6,055	$ 1,307
Accounts receivable, net	470	335
Inventory, net	711	794
Prepaid expenses and other current assets	238	377
Total current assets	7,474	2,813
Right to use asset, operating lease	2,417	0
Property and equipment, net	416	407
Other noncurrent assets	58	58
Total assets	10,365	3,278
Current liabilities:
Accounts payable	123	215
Accrued expenses	564	278
Current portion of operating lease liability	52	0
Current portion of notes payable	59	56
Deferred revenue	12	12
Total current liabilities	810	561
Operating lease liability, less current portion	2,403	0
Notes payable, less current portion	175	206
Total liabilities	3,388	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, 3,764,143 and 1,035,893 shares issued and outstanding as of June 30, 2025 and December 31, 2024, respectively	4	1
Additional paid-in capital	146,351	138,607
Accumulated deficit	(139,378)	(136,097)
Total stockholders’ equity	6,977	2,511
Total liabilities and stockholders’ equity	$ 10,365	$ 3,278