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Common Stock Offering (Details Textual) (USD $)
12 Months Ended
Dec. 31, 2012
Common Stock Offering (Additional Textual) [Abstract]  
Net proceeds from common stock $ 8,695,566
Expenses for issuance of stock $ 654,434
Private Placement [Member]
 
Common Stock Offering (Textual) [Abstract]  
Common stock sold 2,200,000
Common stock at purchase price $ 4.25