Income Taxes (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Taxes Textuals [Abstract]
Deferred tax valuation allowance, percent	100.00%
Net deferred income tax assets	$ 838,000	$ 1,802,000
Amount in retained earnings for additions to the tax bad debt reserve for which no federal tax provision has been made	5,000,000
Net unrealized built-in losses, realization period subject to limitations	5 years
Net unrealized built-in losses, carryforward period	20 years
Total deferred tax assets	191,594,000	175,797,000
Valuation allowance	182,402,000	167,011,000
Current:
Federal	0	0	(105,000)
State	0	0	(22,000)
Total current taxes	0	0	(127,000)
Deferred
Federal	(13,709,000)	(43,001,000)	(36,996,000)
State	(2,721,000)	(8,657,000)	(7,544,000)
Total deferred taxes	(16,430,000)	(51,658,000)	(44,540,000)
Increase in valuation allowance	15,391,000	52,299,000	45,926,000
Total income tax (benefit)/expense - continuing operations	(1,039,000)	641,000	1,259,000
Granite Corp. [Member]
Income Taxes Textuals [Abstract]
Total deferred tax assets	34,600,000
Valuation allowance	$ 33,800,000