Condensed Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Condensed Consolidated Statements of Operations [Abstract]
Revenues, net	$ 21,339,698	$ 13,816,693	$ 59,703,789	$ 34,276,891
Cost of revenues	7,883,570	6,002,368	23,392,368	15,976,258
Gross profit	13,456,128	7,814,325	36,311,421	18,300,633
Operating expenses:
Selling, general and administrative	10,832,896	6,993,636	29,389,309	19,238,437
Research and development	12,705,042	9,312,738	32,284,700	21,579,617
Total operating expenses	23,537,938	16,306,374	61,674,009	40,818,054
Loss from operations	(10,081,810)	(8,492,049)	(25,362,588)	(22,517,421)
Other income (expense):
Foreign exchange gain (loss)	(1,433,303)	514,191	(707,089)	(259,309)
Interest expense	(2,688,898)		(7,940,928)	(971)
Investment income, net	118,322	133,775	413,422	407,254
Other, net	121,373		105,821
Loss before income taxes	(13,964,316)	(7,844,083)	(33,491,362)	(22,370,447)
Provision for income taxes
Net loss	$ (13,964,316)	$ (7,844,083)	$ (33,491,362)	$ (22,370,447)
Net loss per common share - basic and diluted	$ (1.00)	$ (0.57)	$ (2.41)	$ (1.66)
Weighted average shares outstanding - basic and diluted	13,948,162	13,752,829	13,924,182	13,467,540