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6. STOCK OPTIONS AND WARRANTS (Details - Options by exercise price) - $ / shares | 12 Months Ended |  |
--- | --- | --- | ---
Apr. 30, 2020 | Apr. 30, 2019 | Apr. 30, 2018
Options [Member] |  |  |
Number of Options | 67,200,000 | 107,450,000 | 95,250,000
Weighted Average Remaining Contractual LIfe (years) | 1 year 7 months 10 days |  |
Weighted Average Exercisable Price | $ 0.06 | $ 0.11 | $ 0.11
Numer of Options Exercisable | 61,000,000 |  |
$0.063 [Member] |  |  |
Number of Options | 15,600,000 |  |
Weighted Average Remaining Contractual LIfe (years) | 4 months 24 days |  |
Weighted Average Exercisable Price | $ 0.063 |  |
Numer of Options Exercisable | 15,600,000 |  |
$0.104 [Member] |  |  |
Number of Options | 10,450,000 |  |
Weighted Average Remaining Contractual LIfe (years) | 1 year 2 months 12 days |  |
Weighted Average Exercisable Price | $ 0.104 |  |
Numer of Options Exercisable | 10,450,000 |  |
$0.0685 [Member] |  |  |
Number of Options | 600,000 |  |
Weighted Average Remaining Contractual LIfe (years) | 1 year |  |
Weighted Average Exercisable Price | $ 0.0685 |  |
Numer of Options Exercisable | 600,000 |  |
$0.058 [Member] |  |  |
Number of Options | 2,450,000 |  |
Weighted Average Remaining Contractual LIfe (years) | 1 year 7 months 13 days |  |
Weighted Average Exercisable Price | $ 0.058 |  |
Numer of Options Exercisable | 2,450,000 |  |
$0.0734 [Member] |  |  |
Number of Options | 1,200,000 |  |
Weighted Average Remaining Contractual LIfe (years) | 2 years |  |
Weighted Average Exercisable Price | $ 0.0734 |  |
Numer of Options Exercisable | 1,200,000 |  |
$0.0729 [Member] |  |  |
Number of Options | 1,800,000 |  |
Weighted Average Remaining Contractual LIfe (years) | 2 years 2 months 8 days |  |
Weighted Average Exercisable Price | $ 0.0729 |  |
Numer of Options Exercisable | 1,800,000 |  |
$0.089 [Member] |  |  |
Number of Options | 1,200,000 |  |
Weighted Average Remaining Contractual LIfe (years) | 2 years 2 months 19 days |  |
Weighted Average Exercisable Price | $ 0.089 |  |
Numer of Options Exercisable | 1,200,000 |  |
$0.0553 [Member] |  |  |
Number of Options | 500,000 |  |
Weighted Average Remaining Contractual LIfe (years) | 1 year 2 months 19 days |  |
Weighted Average Exercisable Price | $ 0.0553 |  |
Numer of Options Exercisable | 500,000 |  |
$0.0558 [Member] |  |  |
Number of Options | 9,000,000 |  |
Weighted Average Remaining Contractual LIfe (years) | 1 year 7 months 6 days |  |
Weighted Average Exercisable Price | $ 0.0558 |  |
Numer of Options Exercisable | 9,000,000 |  |
$0.0534 [Member] |  |  |
Number of Options | 1,200,000 |  |
Weighted Average Remaining Contractual LIfe (years) | 3 years 4 months 6 days |  |
Weighted Average Exercisable Price | $ 0.0534 |  |
Numer of Options Exercisable | 1,200,000 |  |
$0.0539 [Member] |  |  |
Number of Options | 1,000,000 |  |
Weighted Average Remaining Contractual LIfe (years) | 1 year 6 months |  |
Weighted Average Exercisable Price | $ 0.0539 |  |
Numer of Options Exercisable | 1,000,000 |  |
$0.0683 [Member] |  |  |
Number of Options | 500,000 |  |
Weighted Average Remaining Contractual LIfe (years) | 1 year 6 months 29 days |  |
Weighted Average Exercisable Price | $ 0.0683 |  |
Numer of Options Exercisable | 500,000 |  |
$0.0649 [Member] |  |  |
Number of Options | 500,000 |  |
Weighted Average Remaining Contractual LIfe (years) | 1 year 8 months 19 days |  |
Weighted Average Exercisable Price | $ 0.0649 |  |
Numer of Options Exercisable | 500,000 |  |
$0.0495 [Member] |  |  |
Number of Options | 9,000,000 |  |
Weighted Average Remaining Contractual LIfe (years) | 2 years 3 months 29 days |  |
Weighted Average Exercisable Price | $ 0.0495 |  |
Numer of Options Exercisable | 9,000,000 |  |
$0.038 [Member] |  |  |
Number of Options | 1,200,000 |  |
Weighted Average Remaining Contractual LIfe (years) | 4 years 4 months 24 days |  |
Weighted Average Exercisable Price | $ 0.038 |  |
Numer of Options Exercisable | 1,000,000 |  |
$0.0404 [Member] |  |  |
Number of Options | 1,000,000 |  |
Weighted Average Remaining Contractual LIfe (years) | 2 years |  |
Weighted Average Exercisable Price | $ 0.0404 |  |
Numer of Options Exercisable | 1,000,000 |  |
$0.037 [Member] |  |  |
Number of Options | 500,000 |  |
Weighted Average Remaining Contractual LIfe (years) | 2 years 1 month 2 days |  |
Weighted Average Exercisable Price | $ 0.037 |  |
Numer of Options Exercisable | 500,000 |  |
$0.034 [Member] |  |  |
Number of Options | 500,000 |  |
Weighted Average Remaining Contractual LIfe (years) | 2 years 2 months 19 days |  |
Weighted Average Exercisable Price | $ 0.034 |  |
Numer of Options Exercisable | 500,000 |  |
$0.0408 [Member] |  |  |
Number of Options | 9,000,000 |  |
Weighted Average Remaining Contractual LIfe (years) | 2 years 9 months 22 days |  |
Weighted Average Exercisable Price | $ 0.0408 |  |
Numer of Options Exercisable | 3,000,000 |  |

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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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