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Stockholders' Equity (Warrants) (Narrative) (Details) - $ / shares
Sep. 12, 2018
Dec. 28, 2019
Jul. 31, 2018
Apr. 30, 2018
Nov. 18, 2015
Class of Warrant or Right [Line Items]          
Exercise price of warrants   $ 0.62      
Warrants outstanding   15,010,012      
Minimum          
Class of Warrant or Right [Line Items]          
Exercise price of warrants   $ 0.15      
Maximum          
Class of Warrant or Right [Line Items]          
Exercise price of warrants   $ 0.25      
Warrant          
Class of Warrant or Right [Line Items]          
Warrants to purchase shares of common stock     150,000 50,000  
SVIC Warrant          
Class of Warrant or Right [Line Items]          
Warrants to purchase shares of common stock         2,000,000
Exercise price of warrants         $ 0.30
Software Company Warrant [Member]          
Class of Warrant or Right [Line Items]          
Warrants to purchase shares of common stock     300,000    
Exercise price of warrants     $ 0.11    
Securities purchase agreement          
Class of Warrant or Right [Line Items]          
Exercise price of warrants $ 0.655        
Warrants issued to purchase additional shares 11,111,110