Discontinued Operations - Schedule of Future Receipts on Notes (Details)	Jul. 31, 2019 USD ($)
Discontinued Operations and Disposal Groups [Abstract]
2020	$ 91,667
2021	550,000
2022	550,000
2023	550,000
2024	550,000
Thereafter	458,333
Total	$ 2,750,000

Future receivables due after year five including discontinued operations.

No definition available.

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Namespace Prefix:	IHT_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Future receivables due in five years including discontinued operations.

No definition available.

Name:	IHT_FutureReceivablesDueInFiveYearsIncludingDiscontinuedOperations
Namespace Prefix:	IHT_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Future receivables due in four years including discontinued operations.

No definition available.

Name:	IHT_FutureReceivablesDueInFourYearsIncludingDiscontinuedOperations
Namespace Prefix:	IHT_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Future receivables due in next twelve months including discontinued operations.

No definition available.

Name:	IHT_FutureReceivablesDueInNextTwelveMonthsIncludingDiscontinuedOperations
Namespace Prefix:	IHT_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Future receivables due in three years including discontinued operations.

No definition available.

Name:	IHT_FutureReceivablesDueInThreeYearsIncludingDiscontinuedOperations
Namespace Prefix:	IHT_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Future receivables due in two years including discontinued operations.

No definition available.

Name:	IHT_FutureReceivablesDueInTwoYearsIncludingDiscontinuedOperations
Namespace Prefix:	IHT_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Future receivables due including discontinued operations.

No definition available.

Name:	IHT_FutureReceivablesDueIncludingDiscontinuedOperations
Namespace Prefix:	IHT_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration