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Convertible Preferred Stock (Details) - $ / shares
 3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Convertible Preferred Stock (Textual)    
Preferred stock dividend entitles 6.00%  
Preferred stock dividend, payable semi-annually, description The three-year anniversary of the initial investment date occurred during the second half of 2017 for $5.2 million and the first quarter of 2018 for the remaining $0.3 million originally issued Convertible Preferred Stock and therefore dividends on those investments will be paid via issuance of common shares at all future dividend dates.  
Initial conversion price $ 0.255  
Conversion of series A convertible preferred stock   240,250
Converions of common stock   942,157