Note 10 - Stockholders' Equity (Details Textual) - USD ($)		9 Months Ended
	Dec. 15, 2023	Dec. 31, 2024	Dec. 31, 2023	Mar. 31, 2024
Common Stock, Par or Stated Value Per Share (in dollars per share)		$ 0.02		$ 0.02
Proceeds from Issuance of Common Stock		$ 0	$ 392,000
Private Placement [Member]
Stock Issued During Period, Shares, New Issues (in shares)	400,000
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.02
Shares Issued, Price Per Share (in dollars per share)	$ 1
Proceeds From Sale of Common Stock, Gross Value	$ 400,000
Legal Fees	8,000
Proceeds from Issuance of Common Stock	$ 392,000