FAIR VALUE MEASUREMENTS (Details - Fair values of financial instruments) - USD ($)	Jan. 31, 2026	Apr. 30, 2025
Marketable Equity Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Fair value of financial assets	$ 372,251	$ 366,316
Money Market Account [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Fair value of financial assets	2,081,636	76,287
Convertible Note Receivable [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Fair value of financial assets	0	3,696,000
Warrant Asset Femasys [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Fair value of financial assets	906,000	3,061,000
Investment In Preferred Stock QCLS [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Fair value of financial assets	22,472,000	22,474,000
Warrant Asset QCLS [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Fair value of financial assets	$ 10,242,000	$ 8,618,000