STOCK BASED COMPENSATION (Details) - Information regarding stock options outstanding that were not granted under the 2003 Share Plan, the 2010 Share Plan or the 2018 Share Plan - Stock Options Not Granted Under 2003 Share Plan 2010 Share Plan Or 2018 Share Plan [Member] - USD ($) |
Apr. 30, 2019 |
Apr. 30, 2018 |
|---|---|---|
| STOCK BASED COMPENSATION (Details) - Information regarding stock options outstanding that were not granted under the 2003 Share Plan, the 2010 Share Plan or the 2018 Share Plan [Line Items] | ||
| Options outstanding | 1,780,000 | 1,780,000 |
| Options outstanding | $ 1.58 | $ 1.58 |
| Options outstanding and exercisable | 1,780,000 | 1,780,000 |
| Options outstanding and exercisable | $ 1.58 | $ 1.58 |
| Options outstanding and exercisable | $ 4,683,960 | $ 3,953,820 |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding and exercisable. No definition available.
|
| X | ||||||||||
- Definition Number of options outstanding and exercisable, including both vested and non-vested options. No definition available.
|
| X | ||||||||||
- Definition Weighted average price per share at which the shares are outstanding and exercisable under the stock option plan. No definition available.
|
| 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 | ||||||||||
- Details
|