NOTE 4. NET INCOME PER SHARE: Schedule of Earnings Per Share, Basic and Diluted (Details) - shares	3 Months Ended		9 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Details
Weighted Average Number of Shares Outstanding, Basic	4,835,262	4,833,401	4,834,382	4,832,992
Dilutive effect of stock options	3,862	3,829	4,865	6,733
Shares used in computing net income per share - diluted	4,839,124	4,837,230	4,839,247	4,839,725