Summary of discontinued operations (Details) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Rental	$ 1,178	$ 2,978
Property operations.	526	1,912
Total revenue.	652	1,066
Other income,	0	2
Interest expense,	(219)	(1,758)
General and administration,	(208)	(143)
Depreciation and amortization.,	(145)	(580)
Provision on impairment of real estate assets details	0	0
Total expenses.	(572)	(2,479)
Income (loss) from discontinued operations before gains on sale of real estate, taxes, and fees	80	(1,413)
Gain on sale of discontinued operations.,	6,190	3,588
Income from discontinued operations	6,270	2,175
Income tax expense,	(2,195)	(761)
Net income from discontinued operations	$ 4,075	$ 1,414