Condensed Consolidated Statements of Income and Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Net sales	$ 33,335	$ 30,559	$ 61,409	$ 64,626
Cost of goods sold	26,713	24,064	48,417	50,462
Gross profit	6,622	6,495	12,992	14,164
Selling, general and administrative	4,341	3,382	8,828	7,515
Income from operations	2,281	3,113	4,164	6,649
Other income (expense):
Interest income	304	133	554	249
Foreign exchange (loss) gain	(88)	262	(231)	203
Other, net	(14)	(8)	(13)	(15)
Total other income	202	387	310	437
Income before income taxes	2,483	3,500	4,474	7,086
Provision for income taxes	3,801	1,034	4,358	2,130
Net (loss) income	(1,318)	2,466	116	4,956
Unrealized (loss) gain resulting from change in fair value of derivative instruments, net of tax	(197)	1,242	(1,331)	852
Comprehensive (loss) income	$ (1,515)	$ 3,708	$ (1,215)	$ 5,808
Net (loss) income per common share:
Basic (in dollars per share)	$ (0.20)	$ 0.38	$ 0.02	$ 0.76
Diluted (in dollars per share)	$ (0.20)	$ 0.37	$ 0.02	$ 0.74
Weighted average common shares outstanding
Basic (in shares)	6,615,355	6,567,468	6,610,937	6,562,932
Diluted (in shares)	6,615,355	6,683,356	6,836,567	6,665,159