Document And Entity Information (USD $)	12 Months Ended
	Dec. 31, 2011	Mar. 04, 2012	Jun. 30, 2011
Document and Entity Information [Abstract]
Entity Registrant Name	UMH PROPERTIES, INC.
Entity Central Index Key	0000752642
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Well-Known Seasoned Issuer	No
Entity Common Stock, Shares Outstanding		15,610,383
Entity Public Float			$ 131,451,191	[1]
Document Type	10-K
Document Period End Date	Dec. 31, 2011
Amendment Flag	false
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	FY

[1] Based upon the assumption that directors and executive officers of the registrant are not affiliates of the registrant, the aggregate market value of the voting stock of the registrant held by nonaffiliates of the registrant at June 30, 2011 was $155,636,604.