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Contingencies, Commitments and Other Matters (Details) (USD $)
 3 Months Ended 1 Months Ended
Mar. 31, 2015
Home_Community
Apr. 23, 2015
Home_Community
Contingencies and Commitments (Textual)    
Number of manufactured home communities acquired 1umh_NumberOfAcquiredManufacturedHomeCommunities  
Settlement amount $ 125,000us-gaap_LitigationSettlementAmount  
Aggregate purchase price of manufactured home communities 8,800,000us-gaap_PaymentsToAcquireProductiveAssets  
Purchase price for manufactured home community 5,300,000umh_PurchasePriceForManufacturedHomeCommunity  
Total loan balance 2,900,000umh_TotalLoanBalance  
Total original loan amount $ 3,700,000us-gaap_DebtInstrumentFaceAmount  
Minimum [Member]    
Contingencies and Commitments (Textual)    
Range of purchase price repossessed 80.00%umh_RangeOfPurchasePriceRepossessed
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		  
Maximum [Member]    
Contingencies and Commitments (Textual)    
Range of purchase price repossessed 95.00%umh_RangeOfPurchasePriceRepossessed
/ us-gaap_RangeAxis
= us-gaap_MaximumMember		  
Subsequent Event [Member]    
Contingencies and Commitments (Textual)    
Number of developed home sites   324umh_NumberOfDevelopedHomeSites
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Number of manufactured home communities acquired   2umh_NumberOfAcquiredManufacturedHomeCommunities
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Definitive Agreements [Member]    
Contingencies and Commitments (Textual)    
Number of developed home sites 482umh_NumberOfDevelopedHomeSites
/ umh_AgreementAxis
= umh_DefinitiveAgreementsMember		  
Number of manufactured home communities acquired 3umh_NumberOfAcquiredManufacturedHomeCommunities
/ umh_AgreementAxis
= umh_DefinitiveAgreementsMember		  
Definitive Agreements [Member] | Minimum [Member]    
Contingencies and Commitments (Textual)    
Range of purchase price repossessed 55.00%umh_RangeOfPurchasePriceRepossessed
/ umh_AgreementAxis
= umh_DefinitiveAgreementsMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		  
Definitive Agreements [Member] | Maximum [Member]    
Contingencies and Commitments (Textual)    
Range of purchase price repossessed 100.00%umh_RangeOfPurchasePriceRepossessed
/ umh_AgreementAxis
= umh_DefinitiveAgreementsMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember		  
21st Mortgage Corp [Member]    
Contingencies and Commitments (Textual)    
Number Of Transaction 72umh_NumberOfTransaction
/ umh_AgreementAxis
= umh_AgreementWithTwentyFirstMortgageCorpMember