CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Net sales:
Equipment revenues	$ 20,007,000	$ 20,597,000	$ 60,973,000	$ 60,872,000
Service revenues	6,232,000	4,546,000	17,380,000	12,476,000
Total Revenues	26,239,000	25,143,000	78,353,000	73,348,000
Cost of sales:
Equipment related expenses	13,285,000	13,471,000	39,525,000	39,681,000
Service related expenses	998,000	943,000	3,227,000	2,708,000
Cost of sales	14,283,000	14,414,000	42,752,000	42,389,000
Gross Profit	11,956,000	10,729,000	35,601,000	30,959,000
Research and development	1,815,000	1,851,000	5,387,000	5,358,000
Selling, general, and administrative expenses	6,096,000	5,231,000	18,566,000	16,901,000
Operating expenses	7,911,000	7,082,000	23,953,000	22,259,000
Operating Income	4,045,000	3,647,000	11,648,000	8,700,000
Other expense:
Interest expense, net	5,000	5,000	3,000	18,000
Income before Provision for Income Taxes	4,040,000	3,642,000	11,645,000	8,682,000
Provision for Income Taxes	425,000	520,000	1,225,000	1,187,000
Net Income	$ 3,615,000	$ 3,122,000	$ 10,420,000	$ 7,495,000
Income per share:
Basic (in dollars per share)	$ 0.20	$ 0.17	$ 0.56	$ 0.40
Diluted (in dollars per share)	$ 0.20	$ 0.17	$ 0.56	$ 0.40
Weighted average number of shares outstanding:
Basic (per share)	18,472,000	18,489,000	18,476,000	18,607,000
Diluted (per share)	18,516,000	18,533,000	18,530,000	18,654,000