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Note 10 - Mortgage Notes Payable - Mortgage Notes Payable (Details) (USD $)
Jan. 31, 2015
Jan. 31, 2014
Mortgage note payable $ 19,121,736us-gaap_SecuredDebt $ 18,746,571us-gaap_SecuredDebt
Secured by Albuquerque Property [Member]    
Mortgage note payable   1,126,983us-gaap_SecuredDebt
/ us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis
= iht_SecuredByAlbuquerquePropertyMember
Secured by Ontario Property [Member]    
Mortgage note payable 5,580,410us-gaap_SecuredDebt
/ us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis
= iht_SecuredByOntarioPropertyMember		 5,983,480us-gaap_SecuredDebt
/ us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis
= iht_SecuredByOntarioPropertyMember
Secured by Tucson Foothills Property [Member]    
Mortgage note payable 3,462,188us-gaap_SecuredDebt
/ us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis
= iht_SecuredByTucsonFoothillsPropertyMember		 1,241,111us-gaap_SecuredDebt
/ us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis
= iht_SecuredByTucsonFoothillsPropertyMember
Secured by Tucson St. Mary's Property [Member]    
Mortgage note payable 4,861,936us-gaap_SecuredDebt
/ us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis
= iht_SecuredByTucsonStMarysPropertyMember		 5,039,946us-gaap_SecuredDebt
/ us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis
= iht_SecuredByTucsonStMarysPropertyMember
Secured by Yuma Property [Member]    
Mortgage note payable $ 5,217,202us-gaap_SecuredDebt
/ us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis
= iht_SecuredByYumaPropertyMember		 $ 5,355,051us-gaap_SecuredDebt
/ us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis
= iht_SecuredByYumaPropertyMember