Earnings Per Share (Details 2) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Numerator
Net loss from continuing operations	$ (686)	$ (1,963)	$ (1,168)	$ (3,343)
Less: preferred stock dividends	2,519	1,553	4,071	3,106
Less: amount allocable to unvested restricted stockholders	64	41	133	41
Less: noncontrolling interest allocable to continuing operations	(423)	(1,012)	(698)	(1,993)
Loss from continuing operations available to common stockholders	(2,846)	(2,545)	(4,674)	(4,497)
Income attributable to discontinued operations	502	435	566	454
Less: noncontrolling interest allocable to discontinued operations	66	125	75	140
Income from discontinued operations attributable to common stockholders	$ 436	$ 310	$ 491	$ 314
Denominator
Weighted average common shares outstanding - basic and diluted	42,006,954	19,484,785	41,265,070	17,654,706
Earnings per common share
Loss from continuing operations attributable to common stockholders (in dollars per share)	$ (0.07)	$ (0.13)	$ (0.11)	$ (0.26)
Income from discontinued operations attributable to common stockholders (in dollars per share)	$ 0.01	$ 0.02	$ 0.01	$ 0.02
Loss per share - basic and diluted (in dollars per share)	$ (0.06)	$ (0.11)	$ (0.10)	$ (0.24)