Organization and Business (Details Textual)	6 Months Ended
Jun. 30, 2013 Project
Organization and Business (Additional Textual) [Abstract]
Number of residential projects before merger	3
Wellsford Real Properties [Member]
Organization and Business (Textual) [Abstract]
Percentage of ownership interest before merger	23.00%

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

No definition available.

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