Schedule of results of operations attributable to the Company from the Joint Ventures in which it is invested (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Gross revenues	$ 7,589	$ 8,666
Gross profit	1,200	2,099
Income from continuing operations	1,200	2,023
Earnings of equity accounted asset liquidation investments	$ 1,200	$ 2,023