Related Party Transactions (Details) (USD $)	12 Months Ended		1 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Aug. 31, 2012 Peregrine [Member]	Dec. 31, 2012 Peregrine [Member]	Dec. 31, 2011 Peregrine [Member]	Dec. 31, 2010 Peregrine [Member]	Dec. 31, 2012 Series D1 Preferred Shares [Member]	Nov. 30, 2008 Series D1 Preferred Shares [Member] Peregrine [Member]	Aug. 08, 2012 Common stock [Member] Peregrine [Member]
Related Party Transaction [Line Items]
Purchase of preferred shares								1,345,444
Value of preferred shares		$ 2,000,000						$ 2,000,000
Outstanding shares, description							less than 1%
Outstanding shares, percentage				1.00%
Description of conversion of preferred shares to common			conversion of the preferred shares to common stock at a ratio of 7.34:1, or 183,303 shares of common stock
Conversion of Preferred stock to common stock ratio			7.34
Conversion of Preferred stock to common stock shares									183,303
Lock out period until which Company cannot sell shares				2013-02
Revenue from related party				25,200,000	5,200,000	2,300,000
Accounts receivable from related party				1,700,000	2,000,000
Related Party Transactions (Textual) [Abstract]
Unrealized (gain) loss on investments	$ 806,000,000,000