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Convertible Preferred Stock (Details Narrative) - $ / shares
3 Months Ended
Mar. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Preferred stock, shares outstanding 5,589,647 5,589,647  
Preferred stock, conversion basis Each Series A Preferred share can be converted into common stock in the ratio of 15:1.    
Series A Preferred Stock [Member]      
Preferred stock, shares outstanding 5,589,647   5,589,647
Preferred stock, liquidation preference per share $ 0.001   $ 0.001