Employment agreements term.

No definition available.

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- Definition

Number of directors in company who are directors and shareholders of MREIC.

+ References

No definition available.

+ Details

Name:	UMH_NumberOfDirectorsInCompanyWhoAreDirectorsAndShareholdersOfAffiliateCompany
Namespace Prefix:	UMH_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of shares owned in affiliate company.

+ References

No definition available.

+ Details

Name:	UMH_NumberOfSharesOwnedInAffiliateCompany
Namespace Prefix:	UMH_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of shares owned in affiliate company.

+ References

No definition available.

+ Details

Name:	UMH_PercentageOfSharesOwnedInAffiliateCompany
Namespace Prefix:	UMH_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Renewed lease term.

+ References

No definition available.

+ Details

Name:	UMH_RenewedLeaseTerm
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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

Name:	us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Expenditures for salaries of officers. Does not include allocated share-based compensation, pension and post-retirement benefit expense or other labor-related non-salary expense. For commercial and industrial companies, excludes any direct and overhead labor that is included in cost of goods sold.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.4)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

Name:	us-gaap_OfficersCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 10
-Section 55
-Paragraph 40
-Subparagraph (Note 3)
-URI http://asc.fasb.org/extlink&oid=82846649&loc=d3e38371-112697

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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- Details

Name:	us-gaap_StatementScenarioAxis=UMH_AdditionalOfficeSpaceLeaseFebruaryFourteenTwoThousandEighteenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
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- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=UMH_MrEugeneWLandyMrSamuelALandyAndMsAnnaTChewMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=UMH_MrEugeneAndWLandyMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	dei_LegalEntityAxis=UMH_MonmouthRealEstateInvestmentCorporationMember
Namespace Prefix:
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Related Party Transactions and Other Matters (Details Narrative)		12 Months Ended
	May 01, 2015 USD ($)	Dec. 31, 2017 USD ($) DirectorsAndShareholders shares	Jul. 01, 2017 USD ($)
Renewed lease term	7 years
April 30, 2020 [Member]
Lease payment through April 30, 2020	$ 14,900		$ 1,275
April 30, 2020 [Member] \| Additional Office Space Lease February 14, 2018 [Member]
Lease payment through April 30, 2020		$ 1,800
April 30, 2022 [Member]
Lease payment through April 30, 2022	$ 15,300		$ 1,310
April 30, 2022 [Member] \| Additional Office Space Lease February 14, 2018 [Member]
Lease payment through April 30, 2022		$ 1,850
Mr. Eugene W. Landy, Mr. Samuel A. Landy And Ms. Anna T. Chew [Member]
Employment agreements term		3 years
Approximate value of compensation		$ 1,000,000
Mr. Eugene and W. Landy [Member]
Interest in the entity of landlord of the property		24.00%
Monmouth Real Estate Investment Corporation [Member]
Number of directors and shareholders \| DirectorsAndShareholders		5
Number of shares owned in affiliate company \| shares		2,335,930
Percentage of shares owned in affiliate company		3.00%