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. 28, 2020	$ 316,155	$ 1,845	$ 62,392	$ 315,724	$ (63,806)
Balance (in shares) at Jun. 28, 2020		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 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	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		18,490,000
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	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		18,490,000
Balance at Jun. 27, 2021	$ 358,419	$ 1,849	65,205	344,797	(53,432)
Balance (in shares) at Jun. 27, 2021	18,490,338	18,490,000
Options exercised		$ 1	(1)
Options exercised (in shares)		9,000
Conversion of restricted stock units		$ 6	(6)
Conversion of restricted stock units (in shares)		68,000
Stock-based compensation	$ 2,828	$ 1	2,827
Stock-based compensation (in shares)		5,000
Common stock repurchased and retired under publicly announced program	$ (2,156)	$ (10)	(367)	(1,779)
Common stock repurchased and retired under publicly announced program (in shares)	(186)	(102,000)
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions	$ (137)	$ (2)	(135)
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions (in shares)		(19,000)
Other comprehensive income (loss), net of tax	6,636				6,636
Net income	11,675			11,675
Balance at Mar. 27, 2022	$ 377,265	$ 1,845	67,523	354,693	(46,796)
Balance (in shares) at Mar. 27, 2022	18,451,039	18,451,000
Balance at Dec. 26, 2021	$ 361,192	$ 1,850	67,006	353,393	(61,057)
Balance (in shares) at Dec. 26, 2021		18,498,000
Conversion of restricted stock units (in shares)		4,000
Stock-based compensation	721		721
Common stock repurchased and retired under publicly announced program	(952)	$ (5)	(181)	(766)
Common stock repurchased and retired under publicly announced program (in shares)		(50,000)
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions	(23)		(23)
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions (in shares)		(1,000)
Other comprehensive income (loss), net of tax	14,261				14,261
Net income	2,066			2,066
Balance at Mar. 27, 2022	$ 377,265	$ 1,845	$ 67,523	$ 354,693	$ (46,796)
Balance (in shares) at Mar. 27, 2022	18,451,039	18,451,000