Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Capital in Excess of Par Value [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]
Balance at Jun. 25, 2017	$ 360,806	$ 1,823	$ 51,923	$ 339,940	$ (32,880)
Balance (in shares) at Jun. 25, 2017		18,230,000
Options exercised	219	$ 9	210
Options exercised (in shares)		86,000
Stock-based compensation	5,075		5,075
Stock-based compensation (in shares)		4,000
Conversion of restricted stock units		$ 4	(4)
Conversion of restricted stock units (in shares)		47,000
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions	(479)	$ (1)	(478)
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions (in shares)		(14,000)
Other comprehensive loss, net of tax	(7,653)				(7,653)
Adoption of ASU No. 2018-02 | Accounting Standards Update No. 2018-02 [Member]	111			111
Net income (loss)	31,702			31,702
Balance at Jun. 24, 2018	389,781	$ 1,835	56,726	371,753	(40,533)
Balance (in shares) at Jun. 24, 2018		18,353,000
Options exercised	483	$ 6	477
Options exercised (in shares)		61,000
Stock-based compensation	2,892	$ 1	2,891
Stock-based compensation (in shares)		10,000
Conversion of restricted stock units		$ 6	(6)
Conversion of restricted stock units (in shares)		61,000
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions	(530)	$ (2)	(528)
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions (in shares)		(23,000)
Other comprehensive loss, net of tax	(2,696)				(2,696)
Adoption of the new revenue recognition guidance | Accounting Standards Update 2014-09	459			459
Net income (loss)	2,456			2,456
Balance at Jun. 30, 2019	$ 392,845	$ 1,846	59,560	374,668	(43,229)
Balance (in shares) at Jun. 30, 2019	18,462,296	18,462,000
Options exercised	$ 29	$ 1	28
Options exercised (in shares)	12,000	10,000
Stock-based compensation	$ 3,611	$ 1	3,610
Stock-based compensation (in shares)		4,000
Conversion of restricted stock units		$ 8	(8)
Conversion of restricted stock units (in shares)		76,000
Common stock repurchased and retired underpublicly announced programs	(1,994)	$ (8)	(279)	(1,707)
Common stock repurchased and retired under publicly announced program (in shares)		(84,000)
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions	(522)	$ (3)	(519)
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions (in shares)		(22,000)
Other comprehensive loss, net of tax	(20,577)				(20,577)
Net income (loss)	(57,237)			(57,237)
Balance at Jun. 28, 2020	$ 316,155	$ 1,845	$ 62,392	$ 315,724	$ (63,806)
Balance (in shares) at Jun. 28, 2020	18,446,436	18,446,000