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3. Discontinued Operations (Tables)
3 Months Ended
Oct. 31, 2017
Discontinued Operations and Disposal Groups [Abstract]  
Summary of gain (loss) and carrying amounts of major classes of assets and liabilities from discontinued operations
   Three Months Ended 
   October 31, 
   2017   2016 
         
Office and miscellaneous  $   $(498)
Gain on sale of investment       200,528 
Total Income (Expense)       200,030 
           
Gain from Discontinued Operations, Net of Tax Benefits  $   $200,030