Supplementary Data (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Supplementary Data [Abstract]
Revenues	$ 12,566	$ 16,292	$ 15,443	$ 11,862	$ 13,431	$ 17,031	$ 15,944	$ 11,799	$ 56,163	$ 58,205	$ 55,127
Expenses	12,962	16,326	14,042	13,029	13,370	14,792	13,756	12,194	56,359	54,112	52,573
EARNINGS (LOSS) BEFORE NET GAINS (LOSSES) ON DISPOSITIONS OF ASSETS, OTHER INCOME, INTEREST EXPENSE, AND INCOME TAXES	(396)	(34)	1,401	(1,167)	61	2,239	2,188	(395)	(196)	4,093	2,554
Net gain (loss) on dispositions of assets	(1)	(9)	(8)	(29)	(5)	13	(2)	(3)	(47)	3	1,133
Other income (loss)	5,557	2,671	2,131	(297)	1,334	(1,138)	872	(1,212)	10,062	(144)	107
Interest expense	(1,546)	(1,479)	(1,465)	(1,473)	(1,477)	(1,377)	(1,388)	(1,449)	(5,963)	(5,691)	(5,860)
Loss on debt extinguishment	(89)	(161)	(117)	(91)	(87)	(1)	(38)	(12)	(458)	(138)	(70)
Impairment recoveries (losses)	(2,495)	(164)	(7)	0	(364)	0	(2,735)	266	(2,666)	(2,833)	(4,523)
Termination cost									0	0	540
EARNINGS (LOSS) FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	1,030	824	1,935	(3,057)	(538)	(264)	(1,103)	(2,805)	732	(4,710)	(6,659)
Income tax (benefit) expense	0	0	0	0	6,088	282	381	(314)	0	6,437	(160)
EARNINGS (LOSS) FROM CONTINUING OPERATIONS	1,030	824	1,935	(3,057)	(6,626)	(546)	(1,484)	(2,491)	732	(11,147)	(6,499)
Gain (loss) from discontinued operations	(2,395)	875	443	(1,008)	203	(1,720)	3,924	(1,480)	(2,085)	927	(10,978)
NET (LOSS)	(1,365)	1,699	2,378	(4,065)	(6,423)	(2,266)	2,440	(3,971)	(1,353)	(10,220)	(17,477)
Noncontrolling interest income	2	(3)	(4)	7	11	1	(8)	6	2	10	32
NET (LOSS) ATTRIBUTABLE TO CONTROLLING INTERESTS	(1,363)	1,696	2,374	(4,058)	(6,412)	(2,265)	2,432	(3,965)	(1,351)	(10,210)	(17,445)
Preferred stock dividend declared and undeclared	(838)	(837)	(837)	(837)	(838)	(837)	(837)	(657)	(3,349)	(3,169)	(1,474)
NET (LOSS) ATTRIBUTABLE TO COMMON SHAREHOLDERS	$ (2,201)	$ 859	$ 1,537	$ (4,895)	$ (7,250)	$ (3,102)	$ 1,595	$ (4,622)	$ (4,700)	$ (13,379)	$ (18,919)
EPS from continuing operations	$ 0.07	$ (0.01)	$ 0.38	$ (1.35)	$ (2.58)	$ (0.48)	$ (0.81)	$ (1.09)	$ (0.91)	$ (4.96)	$ (2.77)
EPS from discontinued operations	$ (0.83)	$ 0.31	$ 0.15	$ (0.35)	$ 0.07	$ (0.60)	$ 1.36	$ (0.51)	$ (0.72)	$ 0.32	$ (3.82)
EPS Basic and Diluted	$ (0.76)	$ 0.30	$ 0.53	$ (1.70)	$ (2.51)	$ (1.08)	$ 0.55	$ (1.60)	$ (1.63)	$ (4.64)	$ (6.59)