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Redeemable Convertible Preferred Stock (Details Textual) - USD ($)
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Temporary Equity [Line Items]      
Preferred Stock, Shares Authorized 1,000,000    
Derivative Liabilities, Current $ 72,563 $ 137,177 $ 138,562
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 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 98,698    
Preferred Stock, Liquidation Preference Per Share $ 1,000    
Preferred Stock, Liquidation Preference, Value $ 168,496