Segment Information - Income (Loss) from Discontinued Operations (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting [Abstract]
Revenue from sales of real estate			$ 1,800,000
Cost of sales of real estate			(288,000)
Litigation charge, net of recoveries (see Note 10)	80,000	(11,547,000)	(4,460,000)
Other income (expense), net	(646,000)	(750,000)	(27,000)
(Loss) from discontinued operations before income tax	(566,000)	(12,297,000)	(2,975,000)
Income tax benefit from discontinued operations	(230,000)
(Loss) from discontinued operations, net of income tax benefit	$ (336,489)	$ (12,296,912)	$ (2,974,958)