CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (DEFICIT) (USD $)	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss
Beginning Balances at Dec. 31, 2009	$ 649,220	$ 122,393	$ 39,858,986	$ (39,146,784)	$ (185,375)
Beginning Balances (in shares) at Dec. 31, 2009		15,297,183
Issuance of common stock (in shares)		3,005,349
Exercise of stock options (in shares)		54,874
Exercise of stock options	74,080	549	73,531
Share-based compensation expense	680,268		680,268
Unrealized gain (loss) on foreign currency translation	(8,585)				(8,585)
Net loss	(4,670,379)			(4,670,379)
Ending Balances at Dec. 31, 2010	(3,275,396)	122,942	40,612,785	(43,817,163)	(193,960)
Ending Balances (in shares) at Dec. 31, 2010		18,357,406
Issuance of common stock (in shares)		1,175,512
Issuance of common stock	2,179,535	11,798	2,167,737
Exercise of stock options (in shares)		7,440
Exercise of stock options	10,040	(413)	10,453
Share-based compensation expense	723,616		723,617
Unrealized gain (loss) on foreign currency translation	(73,217)				(73,217)
Net loss	(5,702,422)			(5,702,422)
Ending Balances at Dec. 31, 2011	$ (6,137,844)	$ 134,327	$ 43,514,591	$ (49,519,585)	$ (267,177)
Ending Balances (in shares) at Dec. 31, 2011		19,540,358