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Subsequent Events - Termination of Tempesta Royalty License Agreement (Details) - USD ($)
1 Months Ended
Oct. 31, 2019
Sep. 30, 2019
Feb. 28, 2015
Subsequent Events.      
Principal amount     $ 150,000
Termination of Tempesta Royalty License Agreement | Tempesta      
Subsequent Events.      
Estimate possible loss   $ 640,000  
Termination of Tempesta Royalty License Agreement | Subsequent event | Tempesta      
Subsequent Events.      
Estimate possible loss $ 640,000    
Cash paid 50,000    
Principal amount $ 550,000    
Number roof shares issued in exchange of cessation of royalty payments 40,000    
Interest rate 2.50%    
Periodic payment $ 50,000