Property Acquisitions (Details Textual) (USD $)	1 Months Ended			1 Months Ended						1 Months Ended
	Mar. 31, 2011 CPD NY [Member]	Jan. 13, 2011 CPD NY [Member]	Jan. 13, 2011 CPD NY [Member] Land [Member]	Jan. 31, 2011 CPD Loan [Member]	Jan. 31, 2011 CPD Lease [Member] Term	Mar. 31, 2011 Nouria Lease [Member] Term	Mar. 31, 2011 Nouria Loan [Member]	Jan. 31, 2011 CPD NY Energy Corp [Member] Property	Jan. 13, 2011 CPD NY Energy Corp [Member]	Jan. 31, 2011 ExxonMobil [Member] Property	Mar. 31, 2011 Nouria Energy Ventures [Member] Property	Mar. 31, 2011 Nouria [Member] Term	Mar. 31, 2011 Nouria [Member] Land [Member]
Property Acquisitions (Textual) [Abstract]
Acquisition of real estate assets								59		65	66
Sale/leaseback transaction investment									$ 111,621,000		$ 87,047,000
Sale/leaseback, initial term in years					15 Year	20 Year
Sale/leaseback number of renewal terms					3	2						5
Extendable maturity period for each renewable term				10 Year			ten year
Purchase price allocation, assets acquired			60,610,000										37,875,000
Self amortizing loan term	10 years
Leasehold interest as Lessee accounted as deferred asset		953,000										3,895,000
Leasehold interest as Lessor accounted as deferred liability		2,516,000										3,768,000
Purchase price allocated to direct financing and capital lease assets		38,752,000										37,315,000
Purchase price accounted for in notes, mortgages and accounts receivable, net		18,400,000										12,000,000
Capital Lease obligation		5,768,000										1,114,000
Transaction Cost related to acquisition		$ 1,190,000										$ 844,000