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Summary of Significant Accounting Policies (Details 3)
6 Months Ended
Jun. 30, 2012
Net income (loss) per common share  
Antidilutive securities excluded from calculation of diluted net loss per share 503,496
Warrants [Member]
 
Net income (loss) per common share  
Antidilutive securities excluded from calculation of diluted net loss per share 177,153
Stock options [Member]
 
Net income (loss) per common share  
Antidilutive securities excluded from calculation of diluted net loss per share 326,343