CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net Income (Loss)	$ (21,327,157)us-gaap_NetIncomeLoss	$ (48,783,312)us-gaap_NetIncomeLoss	$ (54,021,515)us-gaap_NetIncomeLoss
Reclassification of Losses Included in Net Loss			67,303
Unrealized Gain on Available-for-Sale Investments	(230,088)	32,419	213,809
Comprehensive Income (Loss)	$ (21,557,245)us-gaap_ComprehensiveIncomeNetOfTax	$ (48,750,893)us-gaap_ComprehensiveIncomeNetOfTax	$ (53,740,403)us-gaap_ComprehensiveIncomeNetOfTax

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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