STOCK OPTIONS AND WARRANTS (Details - Option activity) - Equity Option [Member] |
3 Months Ended |
|---|---|
|
Jul. 31, 2021
$ / shares
shares
| |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Beginning balance | shares | 41,333 |
| Beginning balance | $ 79.97 |
| Beginning balance | $ 79.97 |
| Granted | shares | 1,000 |
| Granted | $ 23.10 |
| Granted | $ 23.10 |
| Forfeited | shares | 0 |
| Forfeited | |
| Forfeited | |
| Exercised | shares | 0 |
| Exercised | |
| Exercised | |
| Ending balance | shares | 42,333 |
| Ending balance | $ 78.63 |
| Ending balance | $ 78.63 |
| Exercisable | shares | 39,833 |
| Exercisable | $ 82.93 |
| Vested and expected to vest | shares | 42,333 |
| Vested and expected to vest | $ 78.63 |
| X | ||||||||||
- Definition Weighted Average Grant Date Fair Value per share No definition available.
|
| X | ||||||||||
- Definition Weighted Average Grant Date Fair Value per share shares exercised No definition available.
|
| X | ||||||||||
- Definition Weighted Average Grant Date Fair Value per share shares forfeited No definition available.
|
| X | ||||||||||
- Definition Weighted Average Grant Date Fair Value per share shares issued No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Net number of share options (or share units) granted during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. No definition available.
|
| X | ||||||||||
- Definition Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated. No definition available.
|
| X | ||||||||||
- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. No definition available.
|
| X | ||||||||||
- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|