INVESTMENT IN DEBT AND EQUITY SECURITIES (Details - Series G Preferred Stock and Preferred Stock Warrants) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jan. 31, 2026 |
Jan. 31, 2025 |
Jan. 31, 2026 |
Jan. 31, 2025 |
|
| DisclosureLineElements [Line Items] | ||||
| Investment, beginnning balance | $ 22,474,000 | |||
| Change in fair value | $ 1,725,000 | $ (3,031,000) | (3,485,000) | $ (1,642,050) |
| Investment, ending balance | 22,472,000 | 22,472,000 | ||
| QCLS Series G Preferred Stock [Member] | ||||
| DisclosureLineElements [Line Items] | ||||
| Investment, beginnning balance | 22,474,000 | |||
| Change in fair value | (5,127,000) | |||
| Investment, ending balance | 17,347,000 | 17,347,000 | ||
| QCLS Series G Warrants [Member] | QCLS [Member] | ||||
| DisclosureLineElements [Line Items] | ||||
| Investment, beginnning balance | 8,618,000 | |||
| Change in fair value | (1,652,000) | |||
| Investment, ending balance | $ 6,966,000 | $ 6,966,000 | ||