Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 27, 2020	Dec. 29, 2019	Dec. 27, 2020	Dec. 29, 2019
Income Statement [Abstract]
Net sales	$ 162,776	$ 169,511	$ 304,281	$ 349,460
Cost of sales	136,842	153,846	263,786	316,352
Gross profit	25,934	15,665	40,495	33,108
Selling, general and administrative expenses	12,625	12,508	23,989	23,488
Benefit for bad debts	(259)	(258)	(1,146)	(249)
Other operating expense, net	476	854	1,654	962
Operating income	13,092	2,561	15,998	8,907
Interest income	(187)	(212)	(312)	(422)
Interest expense	833	1,101	1,704	2,358
Equity in (earnings) loss of unconsolidated affiliates	(130)	756	(223)	1,622
Income before income taxes	12,576	916	14,829	5,349
Provision for income taxes	5,112	507	3,933	1,228
Net income	$ 7,464	$ 409	$ 10,896	$ 4,121
Net income per common share:
Basic	$ 0.40	$ 0.02	$ 0.59	$ 0.22
Diluted	$ 0.40	$ 0.02	$ 0.58	$ 0.22