Stock Option Plans (Summary of Stock Option Activity) (Details) (USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2012	Dec. 31, 2011
Number of Shares
Outstanding, December 31, 2011	1,870,846
Granted (Unaudited)	914,200
Exercised (Unaudited)
Expired (Unaudited)	(701,840)
Forfeited (Unaudited)	(182,531)
Outstanding, September 30, 2012 (Unaudited)	1,900,675	1,870,846
Exercisable, September 30, 2012 (Unaudited)	765,672
Weighted Average Exercise Price
Outstanding, December 31, 2011	$ 3.67
Granted (Unaudited)	$ 1.47
Exercised (Unaudited)
Expired (Unaudited)	$ 5.02
Forfeited (Unaudited)	$ 5.83
Outstanding, September 30, 2012 (Unaudited)	$ 2.29	$ 3.67
Exercisable, September 30, 2012 (Unaudited)	$ 3.38
Remaining Contractual Life (Years)
Outstanding, December 31, 2011	9 years 3 months 15 days	7 years 4 months 24 days
Granted (Unaudited)	9 years 7 months 21 days
Expired (Unaudited)	5 years 6 months 22 days
Outstanding, September 30, 2012 (Unaudited)	9 years 3 months 15 days	7 years 4 months 24 days
Exercisable, September 30, 2012 (Unaudited)	6 years 9 months 11 days
Aggregate Intrinsic Value
Outstanding, December 31, 2011	$ 66,976
Granted (Unaudited)	63,541
Outstanding, September 30, 2012 (Unaudited)	63,541	66,976
Exercisable, September 30, 2012 (Unaudited)	$ 2,649