Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($)	Mar. 31, 2026	Dec. 31, 2025
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, stated value	$ 176,000	$ 176,000
Preferred stock, shares authorized (in shares)	42,000	42,000
Preferred stock, shares issued (in shares)	150	150
Preferred stock, shares outstanding (in shares)	150	150
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, authorized (in shares)	150,000,000	150,000,000
Common stock, issued (in shares)	3,327,399	3,327,399
Common stock, outstanding (in shares)	3,327,210	3,327,210
Treasury stock, common shares (in shares)	189	189