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Summary of Significant Accounting Policies (Details Narrative) - USD ($) |  |  |  | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 16, 2021 | Jan. 31, 2021 | Dec. 16, 2019 | Oct. 31, 2020 | Oct. 31, 2019 | Oct. 31, 2020 | Oct. 31, 2019 | Aug. 31, 2020 | Feb. 03, 2020 | Jan. 31, 2020
Corporate tax returns |  |  |  | $ 294,000 |  | $ 294,000 |  | $ 175,000 |  |
Expected future corporate tax returns |  |  |  | 120,000 |  | 120,000 |  |  |  |
Stock-based compensation |  |  |  |  |  | $ 21,600 | $ 24,300 |  |  |
Aggregate weighted average shares of beneficial for units of partnership |  |  |  |  |  | 3,185,746 | 3,185,746 |  |  |
Weighted average incremental shares resulting from unit conversion |  |  |  |  |  | 3,185,746 | 3,185,746 |  |  |
Advertising expense for continuing operation |  |  |  | $ 39,000 | $ 59,000 | $ 154,000 | $ 233,000 |  |  |
Debt instrument interest rate |  |  |  | 7.00% |  | 7.00% |  |  |  |
Investments |  |  |  | $ 1,030,000 |  | $ 1,030,000 |  |  |  | $ 600,000
Accrued interest income |  |  |  | $ 17,500 | $ 62,225 | $ 81,852 | $ 65,752 |  |  |
Debenture Warrants [Member] |  |  |  |  |  |  |  |  |  |
Warrants exercise price |  |  |  | $ 1.00 |  | $ 1.00 |  |  |  |
Additional Warrants [Member] |  |  |  |  |  |  |  |  |  |
Warrants exercise price |  |  |  | $ 2.25 |  | $ 2.25 |  |  |  |
UniGen Power Inc. [Member] |  |  |  |  |  |  |  |  |  |
Debt instrument interest rate |  |  |  | 6.00% |  | 6.00% |  |  |  |
Investments |  |  |  | $ 1,030,000 |  | $ 1,030,000 |  |  |  |
Notes receivable |  |  |  | $ 424,000 |  | 424,000 |  |  |  |
Fair value of warrants |  |  |  |  |  | 576,000 |  |  |  |
Accrued interest income |  |  |  |  |  | $ 30,000 |  |  |  |
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 interest rate |  |  | 6.00% |  |  |  |  |  |  |
Debt instrument, conversion price per share |  |  | $ 1.00 |  |  |  |  |  |  |
Convertible Debenture Purchase Agreement [Member] | UniGen Power Inc. [Member] | December 16, 2019 [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 |  |  |  |  |  |  |
Subsequent Event [Member] | UniGen Power Inc. [Member] |  |  |  |  |  |  |  |  |  |
Debt instrument, conversion price per share | $ 1.00 |  |  |  |  |  |  |  |  |
Line of credit, funded value | $ 500,000 |  |  |  |  |  |  |  |  |
Number of options convertible into shares | 500,000 |  |  |  |  |  |  |  |  |
Subscription of shares and warrants, description | Upon full subscription of the UniGen $2 million syndication, IHT will be granted an additional 300,000 warrants at $2.25 per share. If all notes are converted and all warrants exercised, IHT would hold 3 million UniGen shares out of a total of approximately 12 million UniGen shares resulting in IHT owning approximately 25% of UniGen. |  |  |  |  |  |  |  |  |
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] | Three Independent Members [Member] |  |  |  |  |  |  |  |  |  |
Stock issued during period share-based compensation, shares |  |  |  |  |  | 18,000 |  |  |  |
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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