Condensed Consolidated Statements of Income and Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Net sales	$ 30,559	$ 26,911	$ 64,626	$ 48,496
Cost of goods sold	24,064	21,242	50,462	38,094
Gross profit	6,495	5,669	14,164	10,402
Selling, general and administrative	3,382	2,934	7,515	5,939
Income from operations	3,113	2,735	6,649	4,463
Other income (expense):
Interest income	133	25	249	56
Interest expense		(2)		(3)
Foreign exchange gain (loss)	262	(96)	203	(104)
Other, net	(8)	(2)	(15)	(10)
Total other income (expense)	387	(75)	437	(61)
Income before income taxes	3,500	2,660	7,086	4,402
Provision for income taxes	1,034	792	2,130	1,321
Net income	2,466	1,868	4,956	3,081
Unrealized gain resulting from change in fair value of derivative instruments, net of tax	1,242	230	852	274
Comprehensive income	$ 3,708	$ 2,098	$ 5,808	$ 3,355
Net income per common share:
Basic (in dollars per share)	$ 0.38	$ 0.29	$ 0.76	$ 0.47
Diluted (in dollars per share)	$ 0.37	$ 0.28	$ 0.74	$ 0.46
Weighted average common shares outstanding
Basic (in shares)	6,567,468	6,509,893	6,562,932	6,515,280
Diluted (in shares)	6,683,356	6,628,752	6,665,159	6,662,036