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Stock-Based Compensation - Schedule of Performance Objective for Applicable Performance Period (Details) (IBC Hotels LLC [Member], USD $)
3 Months Ended
Apr. 30, 2015
Exercisable Tranche A [Member]
 
Performance Period Jan. 31, 2016
Performance objective $ 60,000IHT_PreTaxProfit
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= IHT_IBCHotelsLLCMember
/ us-gaap_VestingAxis
= IHT_ShareBasedCompensationAwardExercisableTrancheOneMember
Exercisable Tranche A and B[Member]
 
Performance Period Jan. 31, 2017
Performance objective 200,000IHT_PreTaxProfit
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= IHT_IBCHotelsLLCMember
/ us-gaap_VestingAxis
= IHT_ShareBasedCompensationAwardExercisableTrancheTwoMember
Exercisable Tranche A, B and C [Member]
 
Performance Period Jan. 31, 2018
Performance objective $ 400,000IHT_PreTaxProfit
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= IHT_IBCHotelsLLCMember
/ us-gaap_VestingAxis
= IHT_ShareBasedCompensationAwardExercisableTrancheThreeMember