CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (USD $)	12 Months Ended			24 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2011
Net loss for the period	$ (23,612,393)	$ (21,637,130)	$ (100,029,813)	$ (45,249,523)
Other comprehensive income (loss), net of tax:
Unrealized gain (loss) on marketable securities	(403,475)	1,736,761	1,498,168	1,333,286
Adjustment for realized gains included in net loss	(772,698)	(241,621)	(2,274,848)	(1,014,319)
Other comprehensive income (loss)	(1,176,173)	1,495,140	(776,680)	318,967
Comprehensive loss for the period	$ (24,788,566)	$ (20,141,990)	$ (100,806,493)	$ (44,930,556)