CONDENSED CONSOLIDATED STATEMENTS OF INCOME (unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Net sales:
Net sales	$ 42,933,000	$ 47,547,000	$ 86,936,000	$ 89,223,000
Cost of sales:
Cost of sales	18,444,000	22,535,000	37,831,000	41,798,000
Gross Profit	24,489,000	25,012,000	49,105,000	47,425,000
Operating expenses:
Research and development	3,107,000	2,542,000	6,164,000	4,979,000
Selling, general, and administrative expenses	10,211,000	8,665,000	19,914,000	17,086,000
Total Operating Expenses	13,318,000	11,207,000	26,078,000	22,065,000
Operating Income	11,171,000	13,805,000	23,027,000	25,360,000
Other income:
Interest and other income, net	921,000	729,000	2,065,000	1,169,000
Income before Provision for Income Taxes	12,092,000	14,534,000	25,092,000	26,529,000
Provision for Income Taxes	1,625,000	1,924,000	3,440,000	3,441,000
Net Income	$ 10,467,000	$ 12,610,000	$ 21,652,000	$ 23,088,000
Income per share:
Basic (in dollars per share)	$ 0.29	$ 0.34	$ 0.59	$ 0.63
Diluted (in dollars per share)	$ 0.28	$ 0.34	$ 0.59	$ 0.62
Weighted average number of shares outstanding:
Basic (in shares)	36,538,000	36,829,000	36,706,000	36,743,000
Diluted (in shares)	36,776,000	37,018,000	36,983,000	36,962,000
Equipment
Net sales:
Net sales	$ 21,725,000	$ 29,007,000	$ 44,642,000	$ 53,398,000
Cost of sales:
Cost of sales	16,606,000	20,656,000	34,116,000	38,153,000
Services
Net sales:
Net sales	21,208,000	18,540,000	42,294,000	35,825,000
Cost of sales:
Cost of sales	$ 1,838,000	$ 1,879,000	$ 3,715,000	$ 3,645,000