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Summary of Significant Accounting Policies (Details Narrative) - USD ($)			3 Months Ended
	Jan. 31, 2021	Dec. 16, 2019	Apr. 30, 2020	Apr. 30, 2019	Feb. 03, 2020	Jan. 31, 2020
Corporate tax returns			$ 294,000
Aggregate weighted average shares of beneficial for units of partnership			3,185,746
Weighted average incremental shares resulting from unit conversion			3,185,746	3,185,746
Advertising expense			$ 60,000	$ 83,000
Investments			1,000,000			$ 600,000
Fair value of warrants			$ 576,000
Debenture Warrants [Member]
Warrants exercise price			$ 1.00
Additional Warrants [Member]
Warrants exercise price			$ 2.25
UniGen Power Inc. [Member]
Investments			$ 1,000,000
Notes receivable			$ 424,000
UniGen Power Inc. [Member] \| Debenture Warrants [Member] \| Class A Common Stock [Member]
Number of warrants to purchase common stock		1,000,000			400,000	600,000
Warrants exercise price		$ 1.00
UniGen Power Inc. [Member] \| Additional Warrants [Member] \| Class A Common Stock [Member]
Number of warrants to purchase common stock		200,000			80,000	120,000
Warrants exercise price		$ 2.25
Convertible Debenture Purchase Agreement [Member] \| UniGen Power Inc. [Member]
Payments on secured convertible debentures		$ 1,000,000
Debt instrument, conversion price per share		$ 1.00
Convertible Debenture Purchase Agreement [Member] \| UniGen Power Inc. [Member] \| December 16, 2020 [Member]
Payments on secured convertible debentures		$ 600,000
Convertible Debenture Purchase Agreement [Member] \| UniGen Power Inc. [Member] \| February 3, 2020 [Member]
Payments on secured convertible debentures		$ 400,000
Three Independent Members [Member]
Stock issued during period share-based compensation, shares			6,000
Three Independent Trustees [Member] \| Subsequent Event [Member]
Vested shares	500
Vested shares, value	$ 1,500
90 days [Member]
Percentage of allowance for doubtful accounts			50.00%
120 days [Member]
Percentage of allowance for doubtful accounts			100.00%
Restricted Stock [Member]
Stock issued during period share-based compensation, shares			18,000
Restricted Stock [Member] \| Independent Trustee One [Member]
Stock issued during period share-based compensation, shares			6,000
Restricted Stock [Member] \| Independent Trustee Two [Member]
Stock issued during period share-based compensation, shares			6,000
Restricted Stock [Member] \| Independent Trustee Three [Member]
Stock issued during period share-based compensation, shares			6,000
Building and Improvements [Member] \| Maximum [Member]
Property, plant and equipment, useful life			40 years
Furniture, Fixtures and Equipment [Member] \| Maximum [Member]
Property, plant and equipment, useful life			10 years
Furniture, Fixtures and Equipment [Member] \| Minimum [Member]
Property, plant and equipment, useful life			3 years