PROPERTY ACQUISITIONS (Details) (USD $) In Thousands, unless otherwise specified	1 Months Ended	6 Months Ended
	Jan. 31, 2011	Jun. 30, 2011	Jun. 30, 2010
Property Acquisitions
Loan Assumed		$ 8,660	$ 6,475
Cash paid to obtain joint venture partner's equity interests in joint venture	320
Utah, Texas, 2 Properties Acquired 4/1/2011
Property Acquisitions
Number of Properties		2
Total Consideration Paid		7,262
Cash Consideration Paid		7,205
Net Liabilities (Assets) Assumed		57
Acquisition Date Fair Value, Land		1,512
Acquisition Date Fair Value, Building		5,548
Acquisition Date Fair Value, Intangible		188
Closing costs - expensed		14
California, 1 Property Acquired 2011/04/07
Property Acquisitions
Number of Properties		1
Total Consideration Paid		8,207
Cash Consideration Paid		8,150
Net Liabilities (Assets) Assumed		57
Acquisition Date Fair Value, Land		2,211
Acquisition Date Fair Value, Building		5,829
Acquisition Date Fair Value, Intangible		163
Closing costs - expensed		4
Tennessee, 1 Property Acquired 2011/04/15
Property Acquisitions
Number of Properties		1
Total Consideration Paid		2,577
Cash Consideration Paid		2,514
Net Liabilities (Assets) Assumed		25
Acquisition Date Fair Value, Land		652
Acquisition Date Fair Value, Building		1,791
Acquisition Date Fair Value, Intangible		79
Closing costs - expensed		17
Colorado, 1 Property Acquired 2011/05/25
Property Acquisitions
Number of Properties		1
Total Consideration Paid		3,540
Cash Consideration Paid		2,262
Loan Assumed		1,290
Net Liabilities (Assets) Assumed		(12)
Acquisition Date Fair Value, Land		407
Acquisition Date Fair Value, Building		3,077
Acquisition Date Fair Value, Intangible		61
Closing costs - expensed		(5)
Virginia, 1 Property Acquired 2011/05/26
Property Acquisitions
Number of Properties		1
Total Consideration Paid		10,513
Cash Consideration Paid		5,205
Loan Assumed		5,463
Net Liabilities (Assets) Assumed		(154)
Acquisition Date Fair Value, Land		932
Acquisition Date Fair Value, Building		9,349
Acquisition Date Fair Value, Intangible		202
Closing costs - expensed		31
New Jersey, 1 Property Acquired 2011/06/02
Property Acquisitions
Number of Properties		1
Total Consideration Paid		4,963
Cash Consideration Paid		4,959
Net Liabilities (Assets) Assumed		4
Acquisition Date Fair Value, Land		1,644
Acquisition Date Fair Value, Building		3,115
Acquisition Date Fair Value, Intangible		135
Closing costs - expensed		69
Colorado, 1 Property Acquired 2011/06/10
Property Acquisitions
Number of Properties		1
Total Consideration Paid		4,600
Cash Consideration Paid		2,664
Loan Assumed		1,907
Net Liabilities (Assets) Assumed		29
Acquisition Date Fair Value, Land		296
Acquisition Date Fair Value, Building		4,199
Acquisition Date Fair Value, Intangible		98
Closing costs - expensed		7
Nevada, 1 Property Acquired 2011/06/22
Property Acquisitions
Number of Properties		1
Total Consideration Paid		3,355
Cash Consideration Paid		3,339
Net Liabilities (Assets) Assumed		16
Acquisition Date Fair Value, Land		1,441
Acquisition Date Fair Value, Building		1,810
Acquisition Date Fair Value, Intangible		98
Closing costs - expensed		6
Ohio, Indiana , Kentucky, 15 Properties Acquired 2011/06/27
Property Acquisitions
Number of Properties		15
Total Consideration Paid		39,773
Cash Consideration Paid		39,387
Net Liabilities (Assets) Assumed		386
Acquisition Date Fair Value, Land		13,587
Acquisition Date Fair Value, Building		24,991
Acquisition Date Fair Value, Intangible		903
Closing costs - expensed		$ 292