Net Loss Per Share (Details Textual)	3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2012	Jun. 30, 2011
Net Loss Per Share (Textual) [Abstract]
Shares excluded from the calculations as their effect antidilutive	16,962,000	16,962,000	14,693,000
Common shares issued pursuant to a public offering	21,800,000	21,800,000