Consolidated Statement of Stockholders' Equity - USD ($)	Common Stock Warrants [Member] Preferred Stock [Member]	Common Stock Warrants [Member] Common Stock Outstanding [Member]	Common Stock Warrants [Member] Treasury Stock, Common [Member]	Common Stock Warrants [Member] Additional Paid-in Capital [Member]	Common Stock Warrants [Member] Retained Earnings [Member]	Common Stock Warrants [Member]	Series F Preferred Stock Warrants [Member] Preferred Stock [Member]	Series F Preferred Stock Warrants [Member] Common Stock Outstanding [Member]	Series F Preferred Stock Warrants [Member] Treasury Stock, Common [Member]	Series F Preferred Stock Warrants [Member] Additional Paid-in Capital [Member]	Series F Preferred Stock Warrants [Member] Retained Earnings [Member]	Series F Preferred Stock Warrants [Member]	Prefunded Warrants [Member] Common Stock Outstanding [Member]	Prefunded Warrants [Member]	Preferred Stock [Member]	Common Stock Outstanding [Member]	Treasury Stock, Common [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2023															1,930	573,644
Balance at Dec. 31, 2023															$ 0	$ 0	$ (181,000)	$ 233,913,000	$ (228,231,000)	$ 5,501,000
Balance (in shares) at Dec. 31, 2023																	189
Net loss																			(4,043,000)	(4,043,000)
Stock-based compensation															$ 0	$ 0	$ 0	62,000	0	62,000
Issuances related to Warrant exercises (in shares)	0	282,314	0			282,314	1,648	0	0
Proceeds from warrant exercise, net of fees	$ 0	$ 0	$ 0	$ 903,000	$ 0	$ 903,000	$ 0	$ 0	$ 0	$ 1,478,000	$ 0	$ 1,478,000
Issuances from Preferred Stock conversions (in shares)															(3,033)	288,968	0
Conversions of Series F Preferred Stock and accrued dividends															$ 0	$ 0	$ 0	191,000	0	191,000
Series F Preferred Stock dividends															$ 0	$ 0	0	(89,000)	0	(89,000)
Stock Issued During Period, Shares, Warrants Exercised (in shares)	0	282,314	0			282,314	1,648	0	0
Balance (in shares) at Dec. 31, 2024															545	1,144,926
Balance at Dec. 31, 2024															$ 0	$ 0	$ (181,000)	236,458,000	(232,274,000)	$ 4,003,000
Balance (in shares) at Dec. 31, 2024																	189			189
Net loss																			(6,355,000)	$ (6,355,000)
Issuances related to Warrant exercises (in shares)		521,725				521,725	575						1,403,131	1,403,131
Proceeds from warrant exercise, net of fees				$ 1,639,000		$ 1,639,000				$ 516,000		$ 516,000
Issuances from Preferred Stock conversions (in shares)															(970)	257,617	0
Conversions of Series F Preferred Stock and accrued dividends															$ 0	$ 0	$ 0	39,000	0	39,000
Series F Preferred Stock dividends															$ 0	$ 0	$ 0	(32,000)	0	(32,000)
Issuance, preferred (in shares)															0	0	0
Proceeds from Private Placement, net of fees															$ 0	$ 0	$ 0	6,888,000	0	6,888,000
Advisor warrant issuance															$ 0	$ 0	0	335,000	0	335,000
Stock Issued During Period, Shares, Warrants Exercised (in shares)		521,725				521,725	575						1,403,131	1,403,131
Balance (in shares) at Dec. 31, 2025															150	3,327,399
Balance at Dec. 31, 2025															$ 0	$ 0	$ (181,000)	$ 245,843,000	$ (238,629,000)	$ 7,033,000
Balance (in shares) at Dec. 31, 2025																	189			189