FAIR VALUE MEASUREMENTS (Details - Fair values of financial instruments) - USD ($)	Jul. 31, 2025	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	$ 261,853	$ 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	77,017	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	4,608,000	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	1,846,000	3,061,000
Investment In Preferred Stock T N F [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Fair value of financial assets	19,635,000	22,474,000
Warrant Asset T N F [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Fair value of financial assets	$ 3,786,000	$ 8,618,000