Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Comprehensive income attributable to common stockholders
Net income	$ 4,283	$ 15,781	$ 3,959
Other comprehensive income (loss):
Unrealized gains (losses) on available for sale securities	182	(82)	(3)
Equity in other comprehensive income of unconsolidated joint venture	152	217	(108)
Other comprehensive income (loss) before taxes	(600)	(4,264)	(38)
(Provisions) benefit for income taxes related to other comprehensive income (loss) items	238	1,699	(2)
Other comprehensive income (loss)	(362)	(2,565)	(40)
Comprehensive income	4,079	13,329	4,135
Comprehensive loss attributable to non-controlling interests	(158)	(113)	(216)
Comprehensive income attributable to common stockholders	3,921	13,216	3,919
Pension plan [Member]
Other comprehensive income (loss):
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, before Reclassification Adjustments and Tax	922	2,574	505
SERP [Member]
Other comprehensive income (loss):
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, before Reclassification Adjustments and Tax	$ 12	$ 1,825	$ (578)