Common stock available for sale value.

No definition available.

Name:	UMH_CommonStockAvailableForSaleValue
Namespace Prefix:	UMH_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Number of developed homesites.

+ References

No definition available.

+ Details

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

- Definition

Number of homesites for future development.

+ References

No definition available.

+ Details

Name:	UMH_NumberOfHomesitesForFutureDevelopment
Namespace Prefix:	UMH_
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Balance Type:	na
Period Type:	duration

- Definition

Number of homesites owned by residents.

+ References

No definition available.

+ Details

Name:	UMH_NumberOfHomesitesOwnedByResidents
Namespace Prefix:	UMH_
Data Type:	xbrli:integerItemType
Balance Type:	na
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- Definition

Percentage of average occupancy.

+ References

No definition available.

+ Details

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Namespace Prefix:	UMH_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Area of land held.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash outflow from the acquisition of a piece of land, anything permanently fixed to it, including buildings, structures on it and so forth; includes real estate intended to generate income for the owner; excludes real estate acquired for use by the owner.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3213-108585

+ Details

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

- Definition

Cash received on stock transaction after deduction of issuance costs.

+ References

No definition available.

+ Details

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

- Definition

Amount of consideration received by subsidiary or equity investee in exchange for shares of stock issued or sold. Includes amount of cash received, fair value of noncash assets received, and fair value of liabilities assumed by the investor.

+ References

No definition available.

+ Details

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

- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

+ Details

Name:	us-gaap_SaleOfStockPricePerShare
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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- Details

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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=UMH_ButlerPennsylvaniaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=UMH_TwoThosandTwentyTwoCommonATMProgramMember
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SUBSEQUENT EVENTS (Details Narrative) $ / shares in Units, $ in Thousands			3 Months Ended
	May 03, 2022 USD ($) a Integer	Apr. 01, 2022 USD ($) $ / shares shares	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)	May 04, 2022 USD ($)
Subsequent Event [Line Items]
Payments to Acquire Real Estate			$ 5,989	$ 8,358
Subsequent Event [Member] \| Mandell Trails [Member] \| Butler, Pennsylvania [Member]
Subsequent Event [Line Items]
Payments to Acquire Real Estate	$ 7,400
[custom:NumberOfDevelopedHomesites] \| Integer	132
Area of Land \| a	65
[custom:NumberOfHomesitesOwnedByResidents] \| Integer	18
[custom:NumberOfHomesitesForFutureDevelopment] \| Integer	38
[custom:PercentageOfAverageOccupancy]	70.00%
Subsequent Event [Member] \| 2022 Common ATM Program [Member]
Subsequent Event [Line Items]
Shares issued and sold \| shares		739,000
Weighted average price per share \| $ / shares		$ 24.32
Proceeds from sale of stock, gross		$ 18,000
Proceeds from sale of stock, net		$ 17,700
Shares reserved for future issuance					$ 101,100