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Notes Receivable - Schedule of Future Payments of Debt (Details) - USD ($) | Oct. 31, 2020 | Jan. 31, 2020
--- | --- | ---
Priority return payments |  |
2021 |  |
2022 | 550,000 |
2023 | 550,000 |
2024 | 825,000 |
Notes receivable | $ 1,925,500 | $ 1,833,333

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- Definition Amount of note receivable in one year. + References No definition available. + Details
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Namespace Prefix: | IHT_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Amount of note receivable in three years. + References No definition available. + Details
Name: | IHT_NotesAndLoansReceivableInYearThree
Namespace Prefix: | IHT_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Amount of note receivable in two years. + References No definition available. + Details
Name: | IHT_NotesAndLoansReceivableInYearTwo
Namespace Prefix: | IHT_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Amount of note receivable remainder of fiscal year. + References No definition available. + Details
Name: | IHT_NotesAndLoansReceivableRemainderOfFiscalYear
Namespace Prefix: | IHT_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
Name: | IHT_NotesReceivableAbstract
Namespace Prefix: | IHT_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount, after allowance for credit loss, of financing receivable, classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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Balance Type: | debit
Period Type: | instant