Stock Warrants (Narrative) (Details) (USD $)	1 Months Ended	12 Months Ended
	Mar. 28, 2008	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Class of Stock [Line Items]
Preferred Units, Issued	9,117,647
Proceeds from issuance of common stock and warrants	$ 15,500,000
Series A Warrant [Member]
Class of Stock [Line Items]
Preferred Units, Issued	242,611
Warrant, exercise price	$ 81.60
Warrant expiration date	Mar. 28, 2013
Series B Warrant [Member]
Class of Stock [Line Items]
Preferred Units, Issued	241,705
Warrant, exercise price	$ 102.00
Warrant expiration date	Mar. 28, 2013
Series A and B Warrant [Member]
Class of Stock [Line Items]
Fair value assumption, expected lives	5 years	3 years
Fair value assumption, expected volatility	89.00%	57.00%
Fair value assumption, risk-free interest rate	2.51%	1.67%
Fair value assumption, dividend yield	0.00%	0.00%
Common stock rights relinquished due to warrant equity treatment change				484,315
Adjustment to additional paid in capital				6,020,000
Retained earnings (accumulated deficit)		36,502,385		2,792,017
Warrant liabilities				8,812,017
Fair value of the warrants			44,304,034
Gain (loss) recognized from change in fair value of warrants		7,801,649	(35,492,017)
Class C Warrants [Member]
Class of Stock [Line Items]
Common stock price per share		$ 120
Warrant rights of exercisable amount of common stock		8,333
Fair value assumption, expected lives		2 years 9 months
Fair value assumption, expected volatility		54.00%
Fair value assumption, risk-free interest rate		1.25%
Fair value assumption, dividend yield		0.00%
Compensation expense recognized		$ 558,180