Commitments and Contingencies (Details Textual) (USD $) In Millions, unless otherwise specified	1 Months Ended	6 Months Ended
	Jul. 31, 2011	Jun. 30, 2011
Commitments and Contingencies (Textuals) [Abstract]
Number of under construction medical offices buildings		3
Cost of construction of office building		$ 10.6
Remaining funding commitment on construction loan		217.8
Number of construction loan		8
Remaining Budgeted amount for First-Generation Tenant improvement		29.3
Maximum estimated amount sought by Plaintiffs		2.0
Maximum cost of project including duplicative payments	4.3
Percentage of project leased to AA-Rated Health System		100.00%
Advance contractor billing amount	0.9
Remaining funding Commitment on construction loans		$ 217.8