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Shareholders' Equity Warrant Exercises (Details) (USD $)
 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Stock Options and Warrants [Line Items]    
Proceeds from exercise of warrants $ 105,881 $ 0
Underwriting Offering [Member]
    
Stock Options and Warrants [Line Items]    
Class of Warrant or Right, Additional Number of Securities Called by Warrants or Rights 20,761  
Class of Warrant or Right, Exercise Price of Warrants or Rights 5.1  
Proceeds from exercise of warrants 100,000  
Class of Warrant or Right, Exercise Price of Warrants or Rights, Amount Above Closing Price of Common Stock on Date of Subscription Agreement 0.30  
Class of Warrant or Right, fair value of warrant inducement $ 0