Note 6 - Property, Plant and Equipment (Details Textual) - U1A Acquisition [Member] - USD ($)		3 Months Ended
		Apr. 30, 2022	Dec. 17, 2021
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment, Total	[1]		$ 13,159,570
Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)		3 years
Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)		21 years

[1] Preliminary fair value of property, plant and equipment was determined using a replacement cost approach.