STATEMENTS OF INCOME - USD ($)	12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Revenue
Product sales	$ 25,221,918	$ 24,632,102
Contract research and development	1,109,300	1,242,592
Total revenue, net	26,331,218	25,874,694
Cost of sales	5,599,454	4,235,780
Gross profit	20,731,764	21,638,914
Expenses
Research and development	3,160,483	3,635,519
Selling, general, and administrative	1,650,790	2,009,246
Total expenses	4,811,273	5,644,765
Income from operations	15,920,491	15,994,149
Interest income	1,891,925	1,909,218
Other income	3,905	135,370
Income before taxes	17,816,321	18,038,737
Provision for income taxes	2,617,126	2,974,221
Net income	$ 15,199,195	$ 15,064,516
Net income per share - basic	$ 3.14	$ 3.12
Net income per share - diluted	3.14	3.11
Cash dividends declared per common share	$ 4	$ 4
Weighted average shares outstanding
Weighted Average Number of Shares Outstanding, Basic	4,837,166	4,835,069
Weighted Average Number of Shares Outstanding, Diluted	4,839,169	4,839,154