CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 26, 2020	Sep. 28, 2019
Income Statement [Abstract]
Net sales	$ 123,207	$ 105,285
Cost of sales	113,192	96,012
Gross profit	10,015	9,273
Operating expenses
Research, development and engineering expenses	2,245	1,660
Selling, general and administrative expenses	4,974	5,074
Total operating expenses	7,219	6,734
Operating income	2,796	2,539
Interest expense, net	681	710
Income before income taxes	2,115	1,829
Income tax provision	396	277
Net income	$ 1,719	$ 1,552
Earnings per share:
Net income per share — Basic	$ 0.16	$ 0.14
Weighted average shares outstanding — Basic	10,760	10,760
Net income per share — Diluted	$ 0.16	$ 0.14
Weighted average shares outstanding — Diluted	11,040	10,805