CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 30, 2017	Oct. 01, 2016
Income Statement [Abstract]
Net sales	$ 109,217	$ 117,135
Cost of sales	101,372	107,426
Gross profit	7,845	9,709
Operating expenses
Research, development and engineering expenses	1,510	1,584
Selling, general and administrative expenses	5,171	5,335
Total operating expenses	6,681	6,919
Operating income	1,164	2,790
Interest expense, net	594	589
Income before income taxes	570	2,201
Income tax provision	138	409
Net income	$ 432	$ 1,792
Earnings per share:
Net income per share — Basic	$ 0.04	$ 0.17
Weighted average shares outstanding — Basic	10,760	10,748
Net income per share — Diluted	$ 0.04	$ 0.16
Weighted average shares outstanding — Diluted	10,760	10,922