Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member] Common Class A [Member]	Common Stock [Member] Common Class B [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]	Total
Balance (in shares) at Jun. 30, 2019	53,084,127	33,822,823				22,489,093
Balance at Jun. 30, 2019	$ 530	$ 338	$ 349,319	$ 108,525	$ (269)	$ (115,732)	$ 342,711
Net income	0	0	0	58,998	0	0	58,998
Translation adjustment	$ 0	$ 0	0	0	26	$ 0	26
Stock-based compensation (in shares)	470,350	0				0
Stock-based compensation	$ 5	$ 0	8,429	0	0	$ 0	8,434
Exercise of stock options (in shares)	150,000	0				0
Exercise of stock options	$ 2	$ 0	283	0	0	$ 0	$ 285
Acquisition of Class A treasury stock (in shares)	0	0				754,458	754,458
Acquisition of Class A treasury stock	$ 0	$ 0	0	0	0	$ (10,680)	$ (10,680)
Balance (in shares) at Jun. 28, 2020	53,704,477	33,822,823				23,243,551
Balance at Jun. 28, 2020	$ 537	$ 338	358,031	167,523	(243)	$ (126,412)	399,774
Net income	0	0	0	118,652	0	0	118,652
Translation adjustment	$ 0	$ 0	0	0	(75)	$ 0	(75)
Stock-based compensation (in shares)	688,675	0				0
Stock-based compensation	$ 7	$ 0	10,828	0	0	$ 0	10,835
Exercise of stock options (in shares)	893,300	0				0
Exercise of stock options	$ 9	$ 0	2,244	0	0	$ 0	$ 2,253
Acquisition of Class A treasury stock (in shares)	0	0				862,290	862,290
Acquisition of Class A treasury stock	$ 0	$ 0	0	0	0	$ (22,369)	$ (22,369)
Conversion of Class B stock into Class A stock (in shares)	389,209
Conversion of Class B stock into Class A stock	$ 4	$ (4)
Conversion of Class B stock into Class A stock (in shares)		(389,209)
Balance (in shares) at Jun. 27, 2021	55,675,661	33,433,614				24,105,841
Balance at Jun. 27, 2021	$ 557	$ 334	371,103	286,175	(318)	$ (148,781)	509,070
Net income	0	0	0	29,610	0	0	29,610
Translation adjustment	$ 0	$ 0	0	0	107	$ 0	107
Stock-based compensation (in shares)	805,028	0				0
Stock-based compensation	$ 8	$ 0	7,939	0	0	$ 0	$ 7,947
Exercise of stock options (in shares)	321,700	0				0	321,700
Exercise of stock options	$ 3	$ 0	843	0	0	$ 0	$ 846
Acquisition of Class A treasury stock (in shares)	0	0				1,592,555	1,592,555
Acquisition of Class A treasury stock	$ 0	$ 0	0	0	0	$ (38,171)	$ (38,171)
Conversion of Class B stock into Class A stock (in shares)	904,000
Conversion of Class B stock into Class A stock		$ (9)
Conversion of Class B stock into Class A stock (in shares)		(904,000)
Conversion of Class B stock into Class A stock	$ 9
Balance (in shares) at Jul. 03, 2022	57,706,389	32,529,614				25,698,396
Balance at Jul. 03, 2022	$ 577	$ 325	$ 379,885	$ 315,785	$ (211)	$ (186,952)	$ 509,409