SEGMENT REPORTING (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Segment Reporting Information [Line Items]
Rental income from operating leases	$ 10,552	$ 9,020	$ 31,451	$ 26,826
Advisory services income - related party	1,069	957	2,784	2,973
Total revenue	11,621	9,977	34,235	29,799
General and administrative	2,161	1,773	6,191	4,836
Property expense	3,294	2,418	9,137	6,913
Legal and professional	290	223	796	669
Real estate commissions	150	129	254	268
Acquisition costs	171		297
Depreciation and amortization	2,897	2,210	8,922	6,545
Impairment recovery - notes receivable		(214)		(443)
Total expenses	8,963	6,539	25,597	18,788
Interest expense	(2,335)	(2,763)	(7,095)	(7,992)
Other income/(expense)	130	319	8,231	606
Income (loss) from continuing operations	453	994	9,774	3,625
Portfolio
Segment Reporting Information [Line Items]
Rental income from operating leases	10,552	9,020	31,451	26,826
Advisory services income - related party
Total revenue	10,552	9,020	31,451	26,826
General and administrative	768	701		1,671
Property expense	3,294	2,418	2,316	6,913
Legal and professional	270	195	9,137	601
Real estate commissions	19		748	1
Acquisition costs	171		19
Depreciation and amortization	2,897	2,210	297	6,545
Impairment recovery - notes receivable		(214)	8,922	(443)
Total expenses	7,419	5,310	(21,439)	15,288
Interest expense	2,335	2,763	(7,095)	7,992
Other income/(expense)	223	345	8,389	731
Income (loss) from continuing operations	1,021	1,292	11,306	4,277
Advisory Services | Real Estate Operating And Development
Segment Reporting Information [Line Items]
Rental income from operating leases
Advisory services income - related party	914	802	2,318	2,507
Total revenue	914	802	2,318	2,507
General and administrative	1,353	1,042		3,084
Property expense			3,777
Legal and professional	19	26		65
Real estate commissions	131	129	45	267
Acquisition costs			235
Depreciation and amortization
Impairment recovery - notes receivable
Total expenses	1,503	1,197	(4,057)	3,416
Interest expense
Other income/(expense)	22		24	2
Income (loss) from continuing operations	(567)	(395)	(1,715)	(907)
Advisory Services | Advised Funds
Segment Reporting Information [Line Items]
Rental income from operating leases
Advisory services income - related party	155	155	466	466
Total revenue	155	155	466	466
General and administrative	40	30		81
Property expense			98
Legal and professional	1	2		3
Real estate commissions			3
Acquisition costs
Depreciation and amortization
Impairment recovery - notes receivable
Total expenses	41	32	101	84
Interest expense
Other income/(expense)	(115)	(26)	(182)	(127)
Income (loss) from continuing operations	$ (1)	$ 97	$ 183	$ 255