Note 11 - Other Matters - Joint Venture (Details Textual) - USD ($)			12 Months Ended
		Jul. 11, 2019	Feb. 28, 2022	May 19, 2021	Feb. 28, 2021	Feb. 29, 2020	Jul. 08, 2019	Mar. 15, 2018	Nov. 20, 2016
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	[1]		$ 0.25		$ 0.25	$ 0.25
Common Stock Payable Current for Contracts Agreements Current			$ 1,990,107		$ 1,500,000
EES - E and EETC [Member]
License and Operating Agreement, Aggregate Purchase Price, Licensing and Distribution							$ 150,000
Warrants to Purchase Restricted Shares Issued to RF [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)			1,000,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)			$ 0.25
Warrant Issued to Mr. Haaye de Jong [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)		250,000
Warrants Issued to Mr. Haaye de Jong in June 2019 [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)		500,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)		$ 0.25
Warrants Issued to Mr. Kevin Holinaty in June 2019 [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)		500,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)		$ 0.25
Raul Factor BV [Member]
Proceeds from Issuance or Sale of Equity, Total		$ 200,000
Equity Offering, Units Issued or Issuable (in shares)		1,000,000
Equity Offering, Units Issued, Price Per Share (in dollars per share)		$ 0.20
Stock Issued During Period, Shares, New Issues (in shares)		1,000,000
Raul Factor [Member]
Proceeds from Issuance or Sale of Equity, Total			$ 200,000
Common Stock Payable Current for Contracts Agreements Current			$ 380,000
Mr. Kevin Holinaty [Member] | Warrant No. 002 [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)									500,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)				$ 0.25
Mr. Kevin Holinaty [Member] | Warrant No. 003 [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)								250,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)		$ 0.25

[1] Weighted average exercise price per shares