CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Net sales:
Net sales	$ 43,532,000	$ 35,905,000	$ 125,339,000	$ 100,364,000
Cost of sales:
Cost of sales	22,253,000	20,872,000	75,140,000	60,432,000
Gross Profit	21,279,000	15,033,000	50,199,000	39,932,000
Operating expenses:
Research and development	2,314,000	2,009,000	6,964,000	5,918,000
Selling, general, and administrative expenses	8,425,000	8,442,000	24,719,000	23,983,000
Total Operating Expenses	10,739,000	10,451,000	31,683,000	29,901,000
Operating Income	10,540,000	4,582,000	18,516,000	10,031,000
Other income (expense):
Interest and other income (expense), net	437,000	(177,000)	521,000	(102,000)
Gain on extinguishment of debt				3,904,000
Income before Provision for Income Taxes	10,977,000	4,405,000	19,037,000	13,833,000
Provision for Income Taxes	1,428,000	1,132,000	2,475,000	1,771,000
Net Income	$ 9,549,000	$ 3,273,000	$ 16,562,000	$ 12,062,000
Income per share:
Basic (in dollars per share)	$ 0.26	$ 0.09	$ 0.45	$ 0.33
Diluted (in dollars per share)	$ 0.26	$ 0.09	$ 0.45	$ 0.33
Weighted average number of shares outstanding:
Basic (in shares)	36,793,000	36,743,000	36,736,000	36,723,000
Diluted (in shares)	37,082,000	36,879,000	36,983,000	36,873,000
Equipment
Net sales:
Net sales	$ 28,390,000	$ 23,873,000	$ 81,511,000	$ 67,080,000
Cost of sales:
Cost of sales	20,780,000	19,334,000	70,341,000	56,077,000
Services
Net sales:
Net sales	15,142,000	12,032,000	43,828,000	33,284,000
Cost of sales:
Cost of sales	$ 1,473,000	$ 1,538,000	$ 4,799,000	$ 4,355,000