NOTE 3. MARKETABLE SECURITIES: Unrealized Gain (Loss) on Investments (Details) - USD ($)	12 Months Ended
Mar. 31, 2024	Mar. 31, 2023
Details
Unrealized gain (loss) from marketable securities	$ 558,399	$ (1,146,618)
Tax effects	(122,178)	250,880
Unrealized gain (loss) from marketable securities, net of tax	$ 436,221	$ (895,738)

Amount of unrealized gain (loss) on investment in marketable security, excluding other-than-temporary impairment (OTTI).

No definition available.

Name:	us-gaap_MarketableSecuritiesUnrealizedGainLossExcludingOtherThanTemporaryImpairments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration