CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Net sales:
Equipment revenues	$ 19,016,000	$ 20,045,000	$ 34,914,000	$ 40,966,000
Service revenues	8,189,000	5,784,000	15,464,000	11,148,000
Total Revenues	27,205,000	25,829,000	50,378,000	52,114,000
Cost of sales:
Equipment related expenses	14,599,000	12,602,000	25,906,000	26,240,000
Service related expenses	1,203,000	1,100,000	2,377,000	2,229,000
Cost of sales	15,802,000	13,702,000	28,283,000	28,469,000
Gross Profit	11,403,000	12,127,000	22,095,000	23,645,000
Research and development	1,884,000	1,823,000	3,773,000	3,572,000
Selling, general, and administrative expenses	5,850,000	6,310,000	11,999,000	12,470,000
Operating expenses	7,734,000	8,133,000	15,772,000	16,042,000
Operating Income	3,669,000	3,994,000	6,323,000	7,603,000
Other expense (income):
Interest expense (income), net	3,000	(9,000)	9,000	(2,000)
Income before Provision for Income Taxes	3,666,000	4,003,000	6,314,000	7,605,000
Provision for Income Taxes	469,000	431,000	798,000	800,000
Net Income	$ 3,197,000	$ 3,572,000	$ 5,516,000	$ 6,805,000
Income per share:
Basic (in dollars per share)	$ 0.17	$ 0.19	$ 0.30	$ 0.37
Diluted (in dollars per share)	$ 0.17	$ 0.19	$ 0.30	$ 0.37
Weighted average number of shares outstanding:
Basic (in shares)	18,347,000	18,478,000	18,347,000	18,478,000
Diluted (in shares)	18,402,000	18,538,000	18,397,000	18,537,000