Intangible Assets (Details) (USD $)	9 Months Ended		12 Months Ended
	Sep. 30, 2012		Dec. 31, 2011	Dec. 31, 2010
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 16,900,000		$ 16,900,000
Accumulated Amortization	(12,284,747)		(10,557,893)
Effect of Foreign Currency Translation	1,281,656		1,132,529
Total	5,896,909	[1]	7,474,636	9,871,394
Acquired Technology
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period	8 years		8 years
Gross Carrying Amount	15,900,000		15,900,000
Accumulated Amortization	(11,607,664)		(9,974,597)
Effect of Foreign Currency Translation	1,281,656		1,132,529
Total	5,573,992		7,057,932
Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period	8 years		8 years
Gross Carrying Amount	1,000,000		1,000,000
Accumulated Amortization	(677,083)		(583,296)
Effect of Foreign Currency Translation
Total	$ 322,917		$ 416,704

[1] (Unaudited)