Note 12 - Income Taxes - Significant Components of Deferred Tax Assets and Liabilities (Details) - USD ($)	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Federal	$ 0	$ 0
State	0	(4,190)
Total	0	(4,190)
Federal		93,383
State		31,617
Total		125,000
Total benefit (provision) for income taxes	$ 0	$ 120,810