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Goodwill and Intangible Assets: Intangible assets (Details) - USD ($)
Oct. 31, 2019
Jul. 31, 2019
Jul. 31, 2018
Intangible assets gross $ 11,276,301 $ 10,153,701 $ 3,239,031
Less accumulated amortization (473,859) (319,432) (27,994)
Intangible assets net 10,802,442 9,834,269 3,211,037
In Process Research and Development [Member]      
Intangible assets gross 8,761,427 8,761,427 2,911,377
Noncompete Agreements [Member]      
Intangible assets gross 1,566,700 1,210,000
Developed Software/Technology [Member]      
Intangible assets gross 172,500 131,000
Vendor agreements and other intangibles [Member]      
Intangible assets gross $ 775,674 51,274  
Other Intangible Assets [Member]      
Intangible assets gross   $ 51,274 $ 327,654