5. STOCK OPTIONS AND WARRANTS (Details - Warrant activity) - $ / shares |
12 Months Ended | |
|---|---|---|
Apr. 30, 2018 |
Apr. 30, 2017 |
|
| Warrants exercisable | 33,993,104 | |
| Warrants [Member] | ||
| Warrants outstanding, beginning balance | 67,853,504 | 84,969,908 |
| Warrants issued | 4,500,000 | 1,638,796 |
| Warrants exercised | (38,360,400) | |
| Warrants expired | 33,993,104 | (18,755,200) |
| Warrants outstanding, ending balance | 33,993,104 | 67,853,504 |
| Warrants exercisable | 67,853,504 | |
| Weighted average exercise price warrants outstanding, beginning balance | $ 0.13 | $ 0.16 |
| Weighted average exercise price warrants issued | 0.00 | 0.00 |
| Weighted average exercise price warrants exercised | 0.00 | 0.00 |
| Weighted average exercise price warrants outstanding, ending balance | 0.00 | $ 0.13 |
| Weighted average exercise price warrants exercisable | $ 0.10 | |
| X | ||||||||||
- Definition Warrants exercised, shares No definition available.
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| X | ||||||||||
- Definition Warrants expired. No definition available.
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| X | ||||||||||
- Definition Warrants issued, shares No definition available.
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| X | ||||||||||
- Definition Weighted average exercise price warrants exercisable No definition available.
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| X | ||||||||||
- Definition Weighted average exercise price warrants exercised No definition available.
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| X | ||||||||||
- Definition Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Number of warrants or rights outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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