Condensed Consolidated Balance Sheets - USD ($)	Sep. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 915,000	$ 5,439,000
Marketable securities	6,287,000	7,631,000
Funds receivable from New Jersey net operating loss		1,184,000
Prepaid expenses and other current assets	368,000	302,000
Total current assets	7,570,000	14,556,000
Property and equipment, net	117,000	127,000
Right of use asset, net	653,000	697,000
Patent and trademark rights, net	2,532,000	2,313,000
Other assets	2,716,000	1,688,000
Total assets	13,588,000	19,381,000
Current liabilities:
Accounts payable	6,264,000	6,443,000
Accrued expenses	1,011,000	1,986,000
Current portion of operating lease liability	232,000	223,000
Current portion of note payable, net	2,593,000
Total current liabilities	10,100,000	8,652,000
Long-term liabilities:
Operating lease liability	437,000	495,000
Note payable, net	139,000
Total liabilities	10,676,000	9,147,000
Commitments and contingencies (Notes 13 and 14)
Stockholders’ equity:
Common Stock, $0.001 par value, authorized shares - 350,000,000; issued and outstanding shares 58,668,647 and 49,102,484 as of September 30, 2024 and December 31, 2023, respectively	59,000	49,000
Additional paid-in capital	423,714,000	419,004,000
Accumulated deficit	(420,861,000)	(409,508,000)
Total stockholders’ equity	2,912,000	10,234,000
Total liabilities and stockholders’ equity	13,588,000	19,381,000
Series A Junior Participating Preferred Stock [Member]
Stockholders’ equity:
Convertible preferred stock, value
Series B Convertible Preferred Stock [Member]
Stockholders’ equity:
Convertible preferred stock, value		$ 689,000