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Redeemable Convertible Preferred Stock (Details Textual) - USD ($)
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Temporary Equity [Line Items]      
Preferred Stock, Shares Authorized 1,000,000    
Derivative Liabilities, Current $ 76,343 $ 70,786 $ 76,236
Series G Preferred Stock [Member]      
Temporary Equity [Line Items]      
Preferred Stock, Par or Stated Value Per Share $ 1,000    
Convertible Preferred Stock, Terms of Conversion convertible into common stock at a conversion price equal to 85% of the lowest sale price of the common stock on its listed market over the five trading days preceding the date of conversion ("Beneficial Conversion Feature"), subject to a maximum conversion price    
Preferred Stock, Shares Outstanding 1,321,537    
Preferred Stock, Liquidation Preference Per Share $ 1,000    
Preferred Stock, Liquidation Preference, Value $ 168,496