Note 2 - Summary of Significant Accounting Policies (Details Textual) (USD $)	12 Months Ended
Jan. 31, 2015	Jan. 31, 2014	Sep. 25, 2013
Asset Impairment Charges	$ 0us-gaap_AssetImpairmentCharges	$ 0us-gaap_AssetImpairmentCharges
Common Stock, Dividends, Per Share, Cash Paid	$ 0.01	$ 0.01
Percentage of Balances Over 90 Days	50.00%iht_PercentageOfBalancesOver90Days
Percentage of Balances Over 120 Days	100.00%iht_PercentageOfBalancesOver120Days
Dividends, Common Stock, Cash	82,665us-gaap_DividendsCommonStockCash	83,449us-gaap_DividendsCommonStockCash
Aggregate Weighted Average Incremental Increase of Shares of Beneficial Interest Assuming Conversion	3,684,069	3,693,972
Number of Operating Segments	2us-gaap_NumberOfOperatingSegments
Number of Hotels	5iht_NumberOfHotels
Number of Suites	843iht_NumberOfSuites
Advertising Expense	588,000us-gaap_AdvertisingExpense	624,000us-gaap_AdvertisingExpense
Building and Building 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
IBC Hotels [Member]
Number of Real Estate Properties	6,300	6,300
Booking Fee	10.00%		10.00%
Other Parties [Member] \| InnSuites Hotel Located in Albuquerque, New Mexico [Member]
Percentage of Ownership Interest Held by Unrelated Third Parties	49.00%
Other Parties [Member] \| InnSuites Hotel Located in Ontario California [Member]
Percentage of Ownership Interest Held by Unrelated Third Parties	48.00%
Other Parties [Member] \| Innsuites Hotels Located in Tucson Arizona [Member]
Percentage of Ownership Interest Held by Unrelated Third Parties	49.00%
Other Parties [Member] \| One InnSuites Hotel Located in Yuma Arizona [Member]
Percentage of Ownership Interest Held by Unrelated Third Parties	26.00%
Other Parties [Member] \| RRF Limited Partnership [Member]
Percentage of Ownership Interest Held by Unrelated Third Parties	28.00%
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	23,100	18,000
Allocated Share-based Compensation Expense	$ 36,666	$ 30,960

Represents the aggregate weighted-average incremental increase of shares of beneficial interest.

No definition available.

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- Definition

Percentage charge for a booking fee.

+ References

No definition available.

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Namespace Prefix:	iht_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the number of hotels.

+ References

No definition available.

+ Details

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Namespace Prefix:	iht_
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Balance Type:	na
Period Type:	instant

- Definition

Represents the number of suites.

+ References

No definition available.

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- Definition

Percentage of balances over 120 days.

+ References

No definition available.

+ Details

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Namespace Prefix:	iht_
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- Definition

Percentage of balances over 90 days.

+ References

No definition available.

+ Details

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- Definition

Percentage of ownership interest held by unrelated third parties

+ References

No definition available.

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Namespace Prefix:	iht_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 720

-SubTopic 35

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 14.F)

-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(1)(i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section F

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Balance Type:	debit
Period Type:	duration

- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 45

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2420-110228

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

+ References

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

+ References

No definition available.

+ Details

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

- Definition

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

+ References

No definition available.

+ Details

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

- 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.

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Balance Type:	na
Period Type:	duration

- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(iii)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Balance Type:	na
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