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Note 4 - Sale of Ownership Interests in Tucson Hospitality Properties Subsidiary (Details Textual) (USD $) | 12 Months Ended |  |  |
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Jan. 31, 2015 | Jan. 31, 2014 | Oct. 31, 2013 | Feb. 17, 2011 | Oct. 01, 2013
Tucson Hospitality Properties LP [Member] |  |  |  |  |
Number of Units of Partnership Interest in a Subsidiary Committed to Purchase by an Affiliate |  |  |  | 250 iht_NumberOfUnitsOfPartnershipInterestInASubsidiaryCommittedToPurchaseByAnAffiliate / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember |
Percentage of Membership Interest in a Subsidiary Committed to Purchase by an Affiliate |  |  |  | 41.00%iht_PercentageOfMembershipInterestInASubsidiaryCommittedToPurchaseByAnAffiliate / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember |
Percentage of Ownership Interest Held by the Trust |  |  | 50.10%iht_PercentageOfOwnershipInterestHeldByTheTrust / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember |  |
Cumulative Priority Distributions Per Unit Per Year | 700 iht_CumulativePriorityDistributionsPerUnitPerYear / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember |  |  |  |
Per Annum Simple Return | 7.00%iht_PerAnnumSimpleReturn / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember |  |  |  |
Percentage of Profits Allocated Proportionately to All Unit Classes | 50.00%iht_PercentageOfProfitsAllocatedProportionatelyToAllUnitClasses / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember |  |  |  |
Tucson Hospitality Properties LP [Member] | Class A and B Limited Partnership Units [Member] |  |  |  |  |
Sale Price Per Membership Interest Unit | 10,000 iht_SalePricePerMembershipInterestUnit / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember / us-gaap_StatementClassOfStockAxis = iht_ClassAAndBLimitedPartnershipUnitsMember | 10,000 iht_SalePricePerMembershipInterestUnit / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember / us-gaap_StatementClassOfStockAxis = iht_ClassAAndBLimitedPartnershipUnitsMember |  |  |
Tucson Hospitality Properties LP [Member] | Class A Limited Partnership Units [Member] |  |  |  |  |
Number of Membership Interest Units Sold | 9.5 iht_NumberOfMembershipInterestUnitsSold / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember / us-gaap_StatementClassOfStockAxis = iht_ClassALimitedPartnershipUnitsMember | 108.5 iht_NumberOfMembershipInterestUnitsSold / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember / us-gaap_StatementClassOfStockAxis = iht_ClassALimitedPartnershipUnitsMember |  |  |
Tucson Hospitality Properties LP [Member] | Class B Limited Partnership Units [Member] |  |  |  |  |
Number of Membership Interest Units Sold | 9 iht_NumberOfMembershipInterestUnitsSold / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember / us-gaap_StatementClassOfStockAxis = iht_ClassBLimitedPartnershipUnitsMember | 54 iht_NumberOfMembershipInterestUnitsSold / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember / us-gaap_StatementClassOfStockAxis = iht_ClassBLimitedPartnershipUnitsMember |  |  |
Mr. Wirth and Affiliates [Member] | Class B Limited Partnership Units [Member] |  |  |  |  |
Percentage of Ownership Interest Held by Related Parties | 25.80%iht_PercentageOfOwnershipInterestHeldByRelatedParties / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = iht_MrWirthAndAffiliatesMember / us-gaap_StatementClassOfStockAxis = iht_ClassBLimitedPartnershipUnitsMember |  |  |  |
Mr. Wirth and Affiliates [Member] | Tucson Hospitality Properties LP [Member] |  |  |  |  |
Percentage of Ownership Interest Held by Related Parties | 1.39%iht_PercentageOfOwnershipInterestHeldByRelatedParties / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = iht_MrWirthAndAffiliatesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember | 1.55%iht_PercentageOfOwnershipInterestHeldByRelatedParties / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = iht_MrWirthAndAffiliatesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember |  |  |
Mr. Wirth and Affiliates [Member] | Tucson Hospitality Properties LP [Member] | Class C Limited Partnership Units [Member] |  |  |  |  |
Number of Partnership Units | 11 iht_NumberOfPartnershipUnits / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = iht_MrWirthAndAffiliatesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember / us-gaap_StatementClassOfStockAxis = iht_ClassCLimitedPartnershipUnitsMember | 12 iht_NumberOfPartnershipUnits / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = iht_MrWirthAndAffiliatesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember / us-gaap_StatementClassOfStockAxis = iht_ClassCLimitedPartnershipUnitsMember |  |  |
RRF Limited Partnership [Member] | Tucson Hospitality Properties LP [Member] |  |  |  |  |
Percentage of Ownership Interest Held by RRF Limited Partnership | 51.01%iht_PercentageOfOwnershipInterestHeldByRrfLimitedPartnership / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = iht_RRFLimitedPartnershipMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember | 51.00%iht_PercentageOfOwnershipInterestHeldByRrfLimitedPartnership / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = iht_RRFLimitedPartnershipMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember |  |  |
Estimated Annual Minimum Preference Payments | 283,000 iht_EstimatedAnnualMinimumPreferencePayments / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = iht_RRFLimitedPartnershipMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember |  |  |  |
RRF Limited Partnership [Member] | Tucson Hospitality Properties LP [Member] | Class A Limited Partnership Units [Member] |  |  |  |  |
Number of Membership Interest Units Sold | 1 iht_NumberOfMembershipInterestUnitsSold / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = iht_RRFLimitedPartnershipMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember / us-gaap_StatementClassOfStockAxis = iht_ClassALimitedPartnershipUnitsMember |  |  |  |
RRF Limited Partnership [Member] | Tucson Hospitality Properties LP [Member] | Class B Limited Partnership Units [Member] |  |  |  |  |
Number of Partnership Units | 404 iht_NumberOfPartnershipUnits / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = iht_RRFLimitedPartnershipMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember / us-gaap_StatementClassOfStockAxis = iht_ClassBLimitedPartnershipUnitsMember | 395 iht_NumberOfPartnershipUnits / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = iht_RRFLimitedPartnershipMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember / us-gaap_StatementClassOfStockAxis = iht_ClassBLimitedPartnershipUnitsMember |  |  |
Rare Earth [Member] | Tucson Hospitality Properties LP [Member] |  |  |  |  |
Sale Price Per Membership Interest Unit |  |  |  |  | $ 10,000 iht_SalePricePerMembershipInterestUnit / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = iht_RareEarthMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember
Number of Partnership Units Sold Threshold |  |  |  |  | 160 iht_NumberOfPartnershipUnitsSoldThreshold / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = iht_RareEarthMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember
Percentage of Additional Profits Allocated to an Affiliate | 50.00%iht_PercentageOfAdditionalProfitsAllocatedToAnAffiliate / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = iht_RareEarthMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember |  |  |  |
Restructuring Costs |  | 128,000 us-gaap_RestructuringCosts / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = iht_RareEarthMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember |  |  |
Estimated Annual Minimum Preference Payments | 8,000 iht_EstimatedAnnualMinimumPreferencePayments / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = iht_RareEarthMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember |  |  |  |
Rare Earth [Member] | Tucson Hospitality Properties LP [Member] | Exercise of Overallotment [Member] |  |  |  |  |
Number of Partnership Units Sold Threshold |  |  |  |  | 200 iht_NumberOfPartnershipUnitsSoldThreshold / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = iht_RareEarthMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember / us-gaap_StatementScenarioAxis = iht_ExerciseOfOverallotmentMember
Rare Earth [Member] | Tucson Hospitality Properties LP [Member] | Restructuring Fee [Member] |  |  |  |  |
Number of Partnership Units |  | 100 iht_NumberOfPartnershipUnits / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = iht_RareEarthMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember / us-gaap_StatementScenarioAxis = iht_RestructuringFeeMember |  |  |
Other Parties [Member] | Tucson Hospitality Properties LP [Member] |  |  |  |  |
Percentage of Ownership Interest Held by Unrelated Third Parties | 47.60%iht_PercentageOfOwnershipInterestHeldByUnrelatedThirdParties / us-gaap_CounterpartyNameAxis = iht_OtherPartiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember | 47.45%iht_PercentageOfOwnershipInterestHeldByUnrelatedThirdParties / us-gaap_CounterpartyNameAxis = iht_OtherPartiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember |  |  |
Other Parties [Member] | Tucson Hospitality Properties LP [Member] | Class A Limited Partnership Units [Member] |  |  |  |  |
Number of Partnership Units | 377 iht_NumberOfPartnershipUnits / us-gaap_CounterpartyNameAxis = iht_OtherPartiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember / us-gaap_StatementClassOfStockAxis = iht_ClassALimitedPartnershipUnitsMember | 367.5 iht_NumberOfPartnershipUnits / us-gaap_CounterpartyNameAxis = iht_OtherPartiesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember / us-gaap_StatementClassOfStockAxis = iht_ClassALimitedPartnershipUnitsMember |  |  |
Unrelated Unit Holders [Member] | Tucson Hospitality Properties LP [Member] |  |  |  |  |
Estimated Annual Minimum Preference Payments | 264,000 iht_EstimatedAnnualMinimumPreferencePayments / us-gaap_CounterpartyNameAxis = iht_UnrelatedUnitHoldersMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = iht_TucsonHospitalityPropertiesLpMember |  |  |  |

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- Definition Represents the percentage of membership interest in a subsidiary that has been committed to be purchased by an affiliate. + References No definition available. + Details
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- Details
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