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Net Loss Per Share Applicable to Common Stockholders - Net income (loss) per share applicable to common stockholders (Details) (USD $)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Dec. 31, 2012
Numerator:          
Net income (loss) $ (320,868) $ (982,823) $ (202,557) $ (2,609,997) $ (3,298,082)
Basic 4,867,063 4,861,063 4,864,360 4,851,152  
Diluted 4,867,063 4,861,063 4,864,360 4,851,152  
Net income (loss) per share:          
Basic $ (0.07) $ (0.2) $ (0.04) $ (0.54)  
Diluted $ (0.07) $ (0.2) $ (0.04) $ (0.54)