CONDENSED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($) | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Total |
Beginning balance, value at Apr. 30, 2020 | $ 77,395 | $ 11,576,571 | $ (11,157,593) | $ 496,373 |
Shares, Issued, Beginning Balance at Apr. 30, 2020 | | | | 77,394,841 |
Common shares issued for exercise of warrants | 816 | 35,904 | | $ 36,720 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period | | | | 816,000 |
Net loss | | | (121,076) | $ (121,076) |
Ending balance, value at Jul. 31, 2020 | 78,211 | 11,612,475 | (11,278,669) | $ 412,017 |
Shares, Issued, Ending Balance at Jul. 31, 2020 | | | | 78,210,841 |
Beginning balance, value at Apr. 30, 2020 | $ 77,395 | 11,576,571 | (11,157,593) | $ 496,373 |
Shares, Issued, Beginning Balance at Apr. 30, 2020 | | | | 77,394,841 |
Common shares issued for exercise of warrants | | | | $ 877,318 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period | 19,495,969 | | | |
Net loss | | | | (434,535) |
Warrants issued for other current assets | | | | |
Ending balance, value at Jan. 31, 2021 | $ 97,291 | 12,453,993 | (11,592,128) | $ 959,156 |
Shares, Issued, Ending Balance at Jan. 31, 2021 | | | | 97,290,810 |
Beginning balance, value at Jul. 31, 2020 | 78,211 | 11,612,475 | (11,278,669) | $ 412,017 |
Shares, Issued, Beginning Balance at Jul. 31, 2020 | | | | 78,210,841 |
Common shares issued for exercise of warrants | 18,680 | 821,918 | | $ 840,598 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period | | | | 18,679,969 |
Net loss | | | (147,693) | $ (147,693) |
Common shares issued for accounts payable | $ 400 | 19,600 | | 20,000 |
Stock Issued During Period, Shares, Other | 400,000 | | | |
Ending balance, value at Oct. 31, 2020 | $ 97,291 | 12,453,993 | (11,426,362) | $ 1,124,922 |
Shares, Issued, Ending Balance at Oct. 31, 2020 | | | | 97,290,810 |
Net loss | | | (165,766) | $ (165,766) |
Ending balance, value at Jan. 31, 2021 | 97,291 | 12,453,993 | (11,592,128) | $ 959,156 |
Shares, Issued, Ending Balance at Jan. 31, 2021 | | | | 97,290,810 |
Beginning balance, value at Apr. 30, 2021 | 97,291 | 12,615,008 | (11,801,793) | $ 910,506 |
Shares, Issued, Beginning Balance at Apr. 30, 2021 | | | | 97,290,810 |
Net loss | | | (165,384) | $ (165,384) |
Ending balance, value at Jul. 31, 2021 | 97,291 | 12,615,008 | (11,967,177) | $ 745,122 |
Shares, Issued, Ending Balance at Jul. 31, 2021 | | | | 97,290,810 |
Beginning balance, value at Apr. 30, 2021 | 97,291 | 12,615,008 | (11,801,793) | $ 910,506 |
Shares, Issued, Beginning Balance at Apr. 30, 2021 | | | | 97,290,810 |
Net loss | | | | $ (339,823) |
Warrants issued for other current assets | | | | 87,871 |
Ending balance, value at Jan. 31, 2022 | 97,291 | 12,702,879 | (12,141,616) | $ 658,554 |
Shares, Issued, Ending Balance at Jan. 31, 2022 | | | | 97,290,810 |
Beginning balance, value at Jul. 31, 2021 | 97,291 | 12,615,008 | (11,967,177) | $ 745,122 |
Shares, Issued, Beginning Balance at Jul. 31, 2021 | | | | 97,290,810 |
Net loss | | | (105,388) | $ (105,388) |
Warrants issued for other current assets | | 87,871 | | 87,871 |
Ending balance, value at Oct. 31, 2021 | 97,291 | 12,702,879 | (12,072,565) | $ 727,605 |
Shares, Issued, Ending Balance at Oct. 31, 2021 | | | | 97,290,810 |
Net loss | | | (69,051) | $ (69,051) |
Ending balance, value at Jan. 31, 2022 | $ 97,291 | $ 12,702,879 | $ (12,141,616) | $ 658,554 |
Shares, Issued, Ending Balance at Jan. 31, 2022 | | | | 97,290,810 |