Note 4 - Income (Loss) Per Share (Details Textual) - shares	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	261,277,459	296,587,793
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares)	56,250	0
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures (in shares)	0	0
Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture (in shares)	56,250	0