NOTE 5. MARKETABLE SECURITIES: Gross unrealized holding losses and estimated fair value of marketable securities for which an allowance for credit losses has not been recorded (Details) - USD ($)	Sep. 30, 2024	Mar. 31, 2024
Estimated Fair Value	$ 0	$ 3,154,764
Gross Unrealized Holding Losses	0	(4,902)
Estimated Fair Value	30,875,572	36,551,534
Gross Unrealized Holding Losses	(227,555)	(991,468)
Estimated Fair Value	30,875,572	39,706,298
Gross Unrealized Holding Losses	(227,555)	(996,370)
Corporate Bond Securities
Estimated Fair Value	0	3,154,764
Gross Unrealized Holding Losses	0	(4,902)
Estimated Fair Value	30,875,572	36,551,534
Gross Unrealized Holding Losses	(227,555)	(991,468)
Estimated Fair Value	30,875,572	39,706,298
Gross Unrealized Holding Losses	$ (227,555)	$ (996,370)

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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