CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Net sales:
Revenues	$ 114,035	$ 101,359	$ 102,932
Cost of sales:
Cost of sales	63,884	57,767	59,042
Gross Profit	50,151	43,592	43,890
Operating expenses:
Research and development	7,620	7,257	7,212
Selling, general, and administrative expenses	25,196	23,670	23,212
Impairment of intangible asset		1,852
Operating expenses	32,816	32,779	30,424
Operating Income	17,335	10,813	13,466
Other expense:
Interest and other expense, net	5	9	21
Income before Provision for Income Taxes	17,330	10,804	13,445
Provision for Income Taxes	2,429	2,284	1,222
Net Income	$ 14,901	$ 8,520	$ 12,223
Income per share:
Basic (in dollars per share)	$ 0.81	$ 0.46	$ 0.66
Diluted (in dollars per share)	$ 0.81	$ 0.46	$ 0.66
Weighted average number of shares outstanding:
Basic (in shares)	18,348,000	18,444,000	18,574,000
Diluted (in shares)	18,404,000	18,493,000	18,624,000
Equipment
Net sales:
Revenues	$ 80,131	$ 77,314	$ 85,505
Cost of sales:
Cost of sales	58,998	53,434	55,240
Services
Net sales:
Revenues	33,904	24,045	17,427
Cost of sales:
Cost of sales	$ 4,886	$ 4,333	$ 3,802