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Investment Property and Equipment (Details Textual) (USD $)
1 Months Ended
Jan. 21, 2015
homesites
acre
Mar. 31, 2015
Dec. 31, 2014
Investment Property and Equipment (Textual)      
Mortgage loan   $ 221,963,780us-gaap_SecuredDebt $ 182,670,854us-gaap_SecuredDebt
Pennsylvania Manufactured Home Communities [Member]      
Investment Property and Equipment (Textual)      
Purchase price of acquired entity 3,800,000umh_BusinessAcquisitionCostOfAcquiredEntityPurchasesPrice
/ us-gaap_BusinessAcquisitionAxis
= umh_PennsylvaniaManufacturedHomeCommunitiesMember
   
Total communities sites 141umh_NumberOfPropertySite
/ us-gaap_BusinessAcquisitionAxis
= umh_PennsylvaniaManufacturedHomeCommunitiesMember
   
Area of acquired real estate property (in acres) 40umh_AreaOfAcquiredRealEstateProperty
/ us-gaap_BusinessAcquisitionAxis
= umh_PennsylvaniaManufacturedHomeCommunitiesMember
   
Percentage of average occupancy 96.00%umh_PercentageOfAverageOccupancy
/ us-gaap_BusinessAcquisitionAxis
= umh_PennsylvaniaManufacturedHomeCommunitiesMember
   
Mortgage loan $ 2,300,000us-gaap_SecuredDebt
/ us-gaap_BusinessAcquisitionAxis
= umh_PennsylvaniaManufacturedHomeCommunitiesMember
   
Interest rate on mortgage 6.50%us-gaap_MortgageLoansOnRealEstateInterestRate
/ us-gaap_BusinessAcquisitionAxis
= umh_PennsylvaniaManufacturedHomeCommunitiesMember
   
Due date of mortgage Oct. 05, 2021