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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 |  |  |

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