Condensed Consolidated Statements of Income and Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Net sales	$ 35,455	$ 31,815	$ 108,030	$ 93,224
Cost of goods sold	29,128	25,105	88,104	73,522
Gross profit	6,327	6,710	19,926	19,702
Selling, general and administrative	4,492	4,187	13,160	13,015
Income from operations	1,835	2,523	6,766	6,687
Other income (expense):
Interest income	411	269	1,495	823
Interest expense	(11)	(6)	(23)	(6)
Foreign exchange gain (loss)	232	(182)	191	(413)
Other, net	(10)	(5)	(1)	(18)
Total other income	622	76	1,662	386
Income before income taxes	2,457	2,599	8,428	7,073
Provision for income taxes	463	548	1,694	4,906
Net income	1,994	2,051	6,734	2,167
Unrealized gain (loss) resulting from change in fair value of derivative instruments, net of tax	424	(219)	1,659	(1,550)
Comprehensive income	$ 2,418	$ 1,832	$ 8,393	$ 617
Net income per common share:
Basic (in dollars per share)	$ 0.29	$ 0.31	$ 0.99	$ 0.33
Diluted (in dollars per share)	$ 0.27	$ 0.30	$ 0.95	$ 0.32
Weighted average common shares outstanding
Basic (in shares)	6,800,375	6,639,098	6,791,105	6,620,324
Diluted (in shares)	7,394,600	6,909,475	7,119,589	6,860,870