Condensed Consolidated Statement of Stockholders' Equity (Unaudited) - USD ($)	Common Stock Warrants [Member] Common Stock Outstanding [Member]	Common Stock Warrants [Member] Additional Paid-in Capital [Member]	Common Stock 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, 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
Net income (loss)								(672,000)	(672,000)
Series F Preferred Stock dividends				$ 0	$ 0	$ 0	(12,000)	0	(12,000)
Issuances from Warrant exercises (in shares)	10,000		10,000
Common warrant exercise, net of fees		$ 31,000	$ 31,000
Balance (in shares) at Mar. 31, 2025				545	1,154,926
Balance at Mar. 31, 2025				$ 0	$ 0	$ (181,000)	236,477,000	(232,946,000)	3,350,000
Balance (in shares) at Mar. 31, 2025						189
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
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
Net income (loss)				0	0	$ 0	0	1,697,000	$ 1,697,000
Series F Preferred Stock dividends				$ 0	$ 0	0	(4,000)	0	(4,000)
Balance (in shares) at Mar. 31, 2026				150	3,327,399
Balance at Mar. 31, 2026				$ 0	$ 0	$ (181,000)	$ 245,839,000	$ (236,932,000)	$ 8,726,000
Balance (in shares) at Mar. 31, 2026						189			189