Stock-Based Compensation (Details Textual) (USD $)	2 Months Ended	3 Months Ended		9 Months Ended
	Jan. 31, 2012	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Stock Based Compensation (Textual) [Abstract]
Period used to charge fair value of employee stock options to expense				4 years
Period used to charge fair value of director stock options to expense				3 years
Performance based stock options granted - total	697,500
Performance based stock options granted - vest upon goal achievement	174,375
Performance based stock options granted - time vest beginning upon goal achievement	523,125
Performance based stock options that began vesting upon goal achievement				87,189
Recorded charges in statement of comprehensive loss		$ 505,000	$ 655,000	$ 1,628,000	$ 2,094,000
Option to purchase common stock granted to employees and directors				157,500	160,750