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)		38,000
Stock-based compensation	1,648		1,648
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions	(65)	$ (1)	(64)
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions (in shares)		(4,000)
Other comprehensive income (loss), net of tax	6,239				6,239
Net income	10,896			10,896
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
Balance at Sep. 27, 2020	320,077	$ 1,845	62,810	319,156	(63,734)
Balance (in shares) at Sep. 27, 2020		18,447,000
Options exercised (in shares)		1,000
Conversion of restricted stock units		$ 4	(4)
Conversion of restricted stock units (in shares)		36,000
Stock-based compensation	1,223		1,223
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions	(58)	$ (1)	(57)
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions (in shares)		(3,000)
Other comprehensive income (loss), net of tax	6,167				6,167
Net income	7,464			7,464
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
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)		64,000
Stock-based compensation	$ 2,107	$ 1	2,106
Stock-based compensation (in shares)		5,000
Common stock repurchased and retired under publicly announced program	$ (1,204)	$ (5)	(186)	(1,013)
Common stock repurchased and retired under publicly announced program (in shares)	(136)	(52,000)
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions	$ (114)	$ (2)	(112)
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions (in shares)		(18,000)
Other comprehensive income (loss), net of tax	(7,625)				(7,625)
Net income	9,609			9,609
Balance at Dec. 26, 2021	$ 361,192	$ 1,850	67,006	353,393	(61,057)
Balance (in shares) at Dec. 26, 2021	18,498,725	18,498,000
Balance at Sep. 26, 2021	$ 360,997	$ 1,852	65,770	353,477	(60,102)
Balance (in shares) at Sep. 26, 2021		18,524,000
Conversion of restricted stock units		$ 2	(2)
Conversion of restricted stock units (in shares)		26,000
Stock-based compensation	1,525	$ 1	1,524
Stock-based compensation (in shares)		5,000
Common stock repurchased and retired under publicly announced program	(1,204)	$ (5)	(186)	(1,013)
Common stock repurchased and retired under publicly announced program (in shares)		(52,000)
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions	(100)		(100)
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions (in shares)		(5,000)
Other comprehensive income (loss), net of tax	(955)				(955)
Net income	929			929
Balance at Dec. 26, 2021	$ 361,192	$ 1,850	$ 67,006	$ 353,393	$ (61,057)
Balance (in shares) at Dec. 26, 2021	18,498,725	18,498,000