Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Current assets
Cash and cash equivalents	$ 41,299	$ 71,084
Restricted cash	110	110
Prepaid materials	3,081	2,098
Prepaid expenses and other current assets	1,128	1,165
Total current assets	45,618	74,457
Other assets	1,990	1,987
Total Assets	47,608	76,444
Current liabilities
Accounts payable	4,293	679
Accrued expenses	1,307	919
Payroll liabilities	1,558	1,862
Other current liabilities	1,097	1,507
Total current liabilities	8,255	4,967
Total Liabilities	8,255	4,967
Commitments and contingencies (Note 13)
Stockholders' equity
Common stock - $0.18 par value; 350,000,000 shares authorized 8,611,361 and 8,611,266 shares issued and outstanding as of December 31, 2025 and 2024	1,550	1,550
Additional paid-in capital	285,840	283,194
Treasury stock, at cost; 88,003 shares of common stock at December 31, 2025 and 2024 respectively	(1,475)	(1,475)
Accumulated deficit	(246,562)	(211,792)
Total Stockholders' Equity	39,353	71,477
Total Liabilities and Stockholders' Equity	47,608	76,444
Series B Preferred Stock [Member]
Stockholders' equity
Series B convertible preferred stock - $0.001 par value; 10,000,000 shares authorized; 577 and 582 shares issued and outstanding as of December 31, 2025 and 2024, respectively	$ 0	$ 0