Condensed Consolidated Balance Sheets - USD ($)	Sep. 30, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 2,347,000	$ 1,701,000
Marketable securities	62,000	2,276,000
Prepaid expenses and other current assets	166,000	199,000
Total current assets	2,575,000	4,176,000
Property and equipment, net	80,000	108,000
Right of use asset, net	436,000	618,000
Patent and trademark rights, net	2,041,000	2,594,000
Other assets	362,000	1,112,000
Total assets	5,494,000	8,608,000
Current liabilities:
Accounts payable	1,252,000	6,383,000
Accrued expenses	679,000	606,000
Current portion of operating lease liability	232,000	239,000
Current portion of note payable, net	1,880,000	2,307,000
Total current liabilities	4,043,000	9,535,000
Long-term liabilities:
Operating lease liability	226,000	395,000
Warrant liability	7,302,000
Total liabilities	11,571,000	9,930,000
Commitments and contingencies (Note 10 and 11)
Stockholders’ deficit:
Common Stock, $0.001 par value, authorized shares - 350,000,000; issued and outstanding shares 2,764,188 and 655,263 as of September 30, 2025 and December 31, 2024, respectively	3,000	1,000
Additional paid-in capital	430,531,000	425,505,000
Accumulated deficit	(436,611,000)	(426,828,000)
Total stockholders’ equity	(6,077,000)	(1,322,000)
Total liabilities and stockholders’ equity	5,494,000	8,608,000
Series A Junior Participating Preferred Stock [Member]
Stockholders’ deficit:
Preferred Stock, Value
Series B Convertible Preferred Stock [Member]
Stockholders’ deficit:
Preferred Stock, Value

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).