Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Current assets:
Cash	$ 25,238	$ 22,358
Accounts receivable	61	45
Inventory	484	341
Prepaid expenses, deposits, and other current assets	1,754	2,404
Total current assets	27,537	25,148
Fixed assets, net	1,040	1,062
Operating lease right-of-use assets	2,454	2,637
Intangible assets, net	631	736
Other assets	1,133	1,132
Total assets	32,795	30,715
Current liabilities:
Accounts payable	829	1,241
Accrued expenses and other current liabilities	2,073	2,829
Operating lease liabilities, current portion	867	854
Senior Secured Convertible Notes - at fair value	32,800	18,600
Total current liabilities	36,569	23,524
Operating lease liabilities, less current portion	1,603	1,800
Total liabilities	38,172	25,324
Commitments and contingencies (Note 8)
Stockholders’ Equity (Deficit):
Preferred stock, $0.001 par value, 20,000,000 shares authorized; Series B and Series B-1 Convertible Preferred Stock, issued and outstanding 54,419 at March 31, 2025 and December 31, 2024	54,419	54,419
Common stock, $0.001 par value, 300,000,000 shares authorized as of March 31, 2025 and December 31, 2024, respectively; 84,374,455 and 63,071,950 shares issued and outstanding as of March 31, 2025 and December 31, 2024, respectively	84	63
Additional paid-in capital	179,904	154,675
Accumulated deficit	(239,784)	(203,766)
Total Stockholders’ Equity (Deficit)	(5,377)	5,391
Total Liabilities and Stockholders’ Equity (Deficit)	$ 32,795	$ 30,715