Note 10 - CFL and Aurous Vertex Limited Transaction (Details Textual) - USD ($)		2 Months Ended	3 Months Ended		12 Months Ended
	Mar. 24, 2025	Feb. 28, 2025	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024	Aug. 12, 2016
Proceeds from Issuance of Common Stock			$ 349,413	$ 95,104
C F L [Member]
Percentage of Common Stock Held By Investors			12.90%
Aurous Vertex Limited [Member]
Percentage of Common Stock Held By Investors			16.80%
Common Stock, Shares, Held by Investors (in shares)			350,000
Aurous Vertex Limited [Member] \| Stock Purchase Agreement [Member]
Stock Issued During Period, Shares, New Issues (in shares)	100,000	100,000			250,000
Shares Issued, Price Per Share (in dollars per share)		$ 3.385			$ 6
Proceeds from Issuance of Common Stock		$ 338,500			$ 1,500,000
Option, Maximum Number of Shares (in shares)		100,000			100,000
Option, Purchase Price Per Share (in dollars per share)		$ 3.385			$ 6
CFL Transactions [Member]
Percentage of Common Stock Held By Investors						51.00%