Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - 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. 30, 2019	$ 392,845	$ 1,846	$ 59,560	$ 374,668	$ (43,229)
Balance (in shares) at Jun. 30, 2019		18,462,000
Options exercised	29	$ 1	28
Options exercised (in shares)		10,000
Conversion of restricted stock units		$ 8	(8)
Conversion of restricted stock units (in shares)		76,000
Stock-based compensation	2,299	$ 1	2,298
Stock-based compensation (in shares)		4,000
Common stock repurchased and retired underpublicly announced program	(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 income (loss), net of tax	(21,838)				(21,838)
Net income (loss)	(36,990)			(36,990)
Balance at Mar. 29, 2020	333,829	$ 1,845	61,080	335,971	(65,067)
Balance (in shares) at Mar. 29, 2020		18,446,000
Balance at Dec. 29, 2019	395,479	$ 1,851	61,187	378,789	(46,348)
Balance (in shares) at Dec. 29, 2019		18,505,000
Conversion of restricted stock units		$ 4	(4)
Conversion of restricted stock units (in shares)		42,000
Stock-based compensation	596		596
Common stock repurchased and retired underpublicly announced program	(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	(422)	$ (2)	(420)
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions (in shares)		(17,000)
Other comprehensive income (loss), net of tax	(18,719)				(18,719)
Net income (loss)	(41,111)			(41,111)
Balance at Mar. 29, 2020	333,829	$ 1,845	61,080	335,971	(65,067)
Balance (in shares) at Mar. 29, 2020		18,446,000
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
Options exercised (in shares)		1,000
Conversion of restricted stock units		$ 4	(4)
Conversion of restricted stock units (in shares)		45,000
Stock-based compensation	$ 2,410	$ 1	2,409
Stock-based compensation (in shares)		4,000
Common stock repurchased and retired under publicly announced program (in shares)	(84)
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions	$ (112)	$ (1)	(111)
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions (in shares)		(6,000)
Other comprehensive income (loss), net of tax	1,490				1,490
Net income (loss)	15,654			15,654
Balance at Mar. 28, 2021	$ 335,597	$ 1,849	64,686	331,378	(62,316)
Balance (in shares) at Mar. 28, 2021	18,490,338	18,490,000
Balance at Dec. 27, 2020	$ 334,873	$ 1,848	63,972	326,620	(57,567)
Balance (in shares) at Dec. 27, 2020		18,481,000
Conversion of restricted stock units (in shares)		7,000
Stock-based compensation	762	$ 1	761
Stock-based compensation (in shares)		4,000
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions	(47)		(47)
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions (in shares)		(2,000)
Other comprehensive income (loss), net of tax	(4,749)				(4,749)
Net income (loss)	4,758			4,758
Balance at Mar. 28, 2021	$ 335,597	$ 1,849	$ 64,686	$ 331,378	$ (62,316)
Balance (in shares) at Mar. 28, 2021	18,490,338	18,490,000