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INCOME TAXES (Tables)
12 Months Ended
Apr. 30, 2023
Income Tax Disclosure [Abstract]  
Schedule of deferred tax assets and liabilities
         
   April 30, 
   2023   2022 
Deferred tax assets:          
Net operating loss carryforwards  $15,732,671   $15,138,850 
Stock compensation   369,666    584,321 
Research and development   93,316     
Other   33,688    35,230 
Total deferred tax assets   16,229,341    15,758,401 
Valuation allowance   (16,229,341)   (15,758,401)
Net deferred tax assets  $   $ 
Schedule of provision for income taxes
         
   Years Ended April 30, 
   2023   2022 
Federal benefit at statutory rate  $(906,359)  $(890,224)
State income taxes, net of Federal taxes   (369,017)   (362,448)
Permanent differences   (12,462)   20,508 
Provision related to change in valuation allowance   470,940    (739,798)
Expired stock options   405,057    1,976,324 
Net valuation allowance for state NOLs   420,300     
Other, net   (8,459)   (4,362)
Provision for income taxes  $   $