Invested in short-term bonds.

No definition available.

Name:	IHT_InvestedInShorttermBonds
Namespace Prefix:	IHT_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Number Of Hotels,

+ References

No definition available.

+ Details

Name:	IHT_NumberOfHotels
Namespace Prefix:	IHT_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number Of Suites.

+ References

No definition available.

+ Details

Name:	IHT_NumberOfSuites
Namespace Prefix:	IHT_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of booking fee.

+ References

No definition available.

+ Details

Name:	IHT_PercentageOfBookingFee
Namespace Prefix:	IHT_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of increase (decrease) to net income used for calculating diluted earnings per share (EPS), resulting from the assumed exercise stock options, restrictive stock units (RSUs), convertible preferred stock of an employee stock ownership plan (ESOP), and other dilutive convertible securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

+ Details

Name:	us-gaap_DilutiveSecurities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfRealEstateProperties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

+ Details

Name:	us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	dei_LegalEntityAxis=IHT_IBCHotelsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=IHT_CompetitorsOfIBCHotelsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_BuildingAndBuildingImprovementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=IHT_FurnitureAndEquipmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_SoftwareDevelopmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Summary of Significant Accounting Policies (Details Narrative)	3 Months Ended		12 Months Ended		15 Months Ended
	Apr. 30, 2018 USD ($) Integer shares	Apr. 30, 2017 USD ($) shares	Jan. 31, 2017 Integer	Jan. 31, 2014	Apr. 30, 2018 Integer
Aggregate weighted average shares of beneficial for units of partnership \| $	$ 3,192,412
Weighted average incremental shares resulting from unit conversion \| shares	3,192,412	3,684,069
Number of reportable segments	2
Number of hotels	3		3
Number of suites	424		424
Invested in short-term bonds \| $		$ 2,000,000
IBC Hotels [Member]
Number of real estate properties	2,000				2,000
Maximum [Member] \| IBC Hotels [Member]
Percentage of booking fee				20.00%
Maximum [Member] \| Competitors of IBC Hotels [Member]
Percentage of booking fee				50.00%
Minimum [Member] \| IBC Hotels [Member]
Percentage of booking fee				10.00%
Minimum [Member] \| Competitors of IBC Hotels [Member]
Percentage of booking fee				15.00%
Building and Improvements [Member] \| Maximum [Member]
Property, plant and equipment, useful life					40 years
Furniture and Equipment [Member] \| Maximum [Member]
Property, plant and equipment, useful life					10 years
Furniture and Equipment [Member] \| Minimum [Member]
Property, plant and equipment, useful life					3 years
Developedt Software Member [Member]
Property, plant and equipment, useful life					5 years