Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Net sales	$ 61,318	$ 54,054	$ 122,832	$ 103,464
Cost of goods sold	42,368	36,449	83,737	70,287
Gross margin	$ 18,950	$ 17,605	$ 39,095	$ 33,177
% of Net sales	30.90%	32.60%	31.80%	32.10%
Restructuring charges	$ 0	$ 384	$ 0	$ 730
Gain on sale of building	0	(3,204)	0	(3,204)
Selling, general and administrative expenses	14,749	14,224	30,762	27,615
Operating income	4,201	6,201	8,333	8,036
Other (expense), net	(662)	(426)	(436)	(427)
Income before income taxes	3,539	5,775	7,897	7,609
Income tax expense (benefit)	1,011	1,918	2,137	(364)
Net income	$ 2,528	$ 3,857	$ 5,760	$ 7,973
Basic income per share (in dollars per share)	$ 0.35	$ 0.54	$ 0.80	$ 1.13
Diluted income per share (in dollars per share)	$ 0.34	$ 0.53	$ 0.77	$ 1.10
Weighted average outstanding shares used in per share calculations:
Basic (in shares)	7,243	7,081	7,185	7,035
Diluted (in shares)	7,492	7,294	7,473	7,260