CONDENSED CONSOLIDATED STATEMENTS OF INCOME (unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Net sales:
Net sales	$ 43,961,000	$ 49,267,000	$ 130,897,000	$ 138,490,000
Cost of sales:
Cost of sales	18,834,000	22,783,000	56,665,000	64,581,000
Gross Profit	25,127,000	26,484,000	74,232,000	73,909,000
Operating expenses:
Research and development	3,185,000	2,757,000	9,349,000	7,736,000
Selling, general, and administrative expenses	10,796,000	9,233,000	30,710,000	26,319,000
Total Operating Expenses	13,981,000	11,990,000	40,059,000	34,055,000
Operating Income	11,146,000	14,494,000	34,173,000	39,854,000
Other income:
Interest and other income, net	862,000	637,000	2,927,000	1,806,000
Income before Provision for Income Taxes	12,008,000	15,131,000	37,100,000	41,660,000
Provision for Income Taxes	1,886,000	1,935,000	5,326,000	5,376,000
Net Income	$ 10,122,000	$ 13,196,000	$ 31,774,000	$ 36,284,000
Income per share:
Basic (in dollars per share)	$ 0.28	$ 0.36	$ 0.87	$ 0.99
Diluted (in dollars per share)	$ 0.28	$ 0.36	$ 0.86	$ 0.98
Weighted average number of shares outstanding:
Basic (in shares)	36,111,000	36,835,000	36,511,000	36,792,000
Diluted (in shares)	36,253,000	37,118,000	36,743,000	37,032,000
Equipment
Net sales:
Net sales	$ 22,351,000	$ 29,735,000	$ 66,993,000	$ 83,133,000
Cost of sales:
Cost of sales	16,852,000	21,179,000	50,968,000	59,332,000
Services
Net sales:
Net sales	21,610,000	19,532,000	63,904,000	55,357,000
Cost of sales:
Cost of sales	$ 1,982,000	$ 1,604,000	$ 5,697,000	$ 5,249,000