NOTE 5. MARKETABLE SECURITIES: Contractual maturities of marketable securities (Details) - USD ($)	Jun. 30, 2024	Mar. 31, 2024
Marketable Securities	$ 52,951,591	$ 52,548,876
(1 Year	21,446,327
1-3 Years	23,206,787
3-5 Years	8,298,477
Money Market Funds
Marketable Securities	5,775,400	9,842,796
(1 Year	5,775,400
1-3 Years	0
3-5 Years	0
Corporate Bond Securities
Marketable Securities	47,176,191	$ 42,706,080
(1 Year	15,670,927
1-3 Years	23,206,787
3-5 Years	$ 8,298,477