Note 16 - Commitments - Operating Leases (Details) - USD ($)	12 Months Ended
	Feb. 28, 2020	Feb. 28, 2019
Scenario, Forecast [Member]
Lease expiration date	Mar. 01, 2019
Lease start date	Feb. 28, 2020
Amount per month	$ 42,000
Subsequent Event [Member]
Lease expiration date		Mar. 01, 2018
Lease start date		Feb. 28, 2019
Amount per month		$ 40,000