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Note 6 - Borrowings (Details) - Mortgages Payable by Lender (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Note 6 - Borrowings (Details) - Mortgages Payable by Lender [Line Items]    
Mortgage payable $ 35,540us-gaap_SecuredDebtOther $ 35,742us-gaap_SecuredDebtOther
NorthMarq Capital [Member]    
Note 6 - Borrowings (Details) - Mortgages Payable by Lender [Line Items]    
Mortgage payable 17,598us-gaap_SecuredDebtOther
/ us-gaap_LineOfCreditFacilityAxis
= rmiviii_NorthMarqCapitalMember		 17,715us-gaap_SecuredDebtOther
/ us-gaap_LineOfCreditFacilityAxis
= rmiviii_NorthMarqCapitalMember
East West Bank [Member]    
Note 6 - Borrowings (Details) - Mortgages Payable by Lender [Line Items]    
Mortgage payable 13,140us-gaap_SecuredDebtOther
/ us-gaap_LineOfCreditFacilityAxis
= rmiviii_EastWestBankMember		 13,193us-gaap_SecuredDebtOther
/ us-gaap_LineOfCreditFacilityAxis
= rmiviii_EastWestBankMember
Capital Source [Member]    
Note 6 - Borrowings (Details) - Mortgages Payable by Lender [Line Items]    
Mortgage payable $ 4,802us-gaap_SecuredDebtOther
/ us-gaap_LineOfCreditFacilityAxis
= rmiviii_CapitalSourceMember		 $ 4,834us-gaap_SecuredDebtOther
/ us-gaap_LineOfCreditFacilityAxis
= rmiviii_CapitalSourceMember