STATEMENTS OF INCOME (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Revenue
Product sales	$ 4,960,488	$ 6,366,009	$ 17,680,780	$ 22,183,223
Contract research and development	102,557	390,251	924,199	537,727
Total revenue	5,063,045	6,756,260	18,604,979	22,720,950
Cost of sales	797,622	1,355,067	2,720,370	5,034,556
Gross profit	4,265,423	5,401,193	15,884,609	17,686,394
Expenses
Research and development	869,677	540,895	2,595,808	1,920,095
Selling, general, and administrative	434,783	389,311	1,543,428	1,298,211
Total expenses	1,304,460	930,206	4,139,236	3,227,820
Income from operations	2,960,963	4,470,987	11,745,373	14,458,574
Interest income	474,180	491,671	1,432,568	1,440,289
Other income	135,057	0	135,057	0
Income before taxes	3,570,200	4,962,658	13,312,998	15,898,863
Provision for income taxes	521,790	778,236	2,140,856	2,587,145
Net income	$ 3,048,410	$ 4,184,422	$ 11,172,142	$ 13,311,718
Net income per share - basic	$ 0.63	$ 0.87	$ 2.31	$ 2.75
Net income per share - diluted	0.63	0.87	2.31	2.75
Cash dividends declared per common share	$ 1	$ 1	$ 3	$ 3
Weighted average shares outstanding
Weighted Average Number of Shares Outstanding, Basic	4,835,262	4,833,401	4,834,382	4,832,992
Weighted Average Number of Shares Outstanding, Diluted	4,839,124	4,837,230	4,839,247	4,839,725
Accounts Receivable, Credit Loss Expense (Reversal)			$ 0	$ 9,514