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Equity (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Summary of Net income (loss) and aggregate net funding repaid to (provided by) the Company to variable interest entity
Aggregate funding (provided by) repaid to the Company, net	$ (601)	$ (1,069)	$ 3,802	$ 553
CCE [Member]
Summary of Net income (loss) and aggregate net funding repaid to (provided by) the Company to variable interest entity
Net income (loss)	697	1,895	2,360	2,828
DAD [Member]
Summary of Net income (loss) and aggregate net funding repaid to (provided by) the Company to variable interest entity
Net income (loss)		(124)	(35)	(313)
Tari [Member]
Summary of Net income (loss) and aggregate net funding repaid to (provided by) the Company to variable interest entity
Net income (loss)		$ 61	$ 10	$ 98

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Variable interest entity aggregate funding provided by or repaid to company net.

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Variable interest entity net income loss.

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