Selected Quarterly Financial Data (Unaudited) (Details Textual) (USD $)	3 Months Ended
Jun. 30, 2012 Home_Community
Selected Quarterly Financial Data Textual [Abstract]
Amount of bonus payment received for rights to drill for oil and gas	$ 499,471
Number of communities	1umh_NumberOfCommunities

Amount of bonus payment received for rights to drill for oil and gas.

No definition available.

Name:	umh_AmountOfBonusPaymentReceivedForRightsToDrillForOilAndGas
Namespace Prefix:	umh_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration