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]	Parent [Member]	Noncontrolling Interest [Member]	Common Class A [Member]	Total
Balance (in shares) at Jun. 30, 2013	36,280,425	42,125,465				14,537,231
Balance at Jun. 30, 2013	$ 362	$ 421	$ 298,580	$ (83,937)		$ (46,155)	$ 169,271			$ 169,271
Net income				15,372			15,372	$ (697)		14,675
Translation adjustment					$ (46)		(46)	(29)		(75)
Conversion of Class B stock into Class A stock (in shares)	66,871	(66,871)
Conversion of Class B stock into Class A stock	$ 1	$ (1)
Stock-based compensation (in shares)	1,608,052
Stock-based compensation	$ 16		4,648				4,664			4,664
Exercise of stock options (in shares)	164,050
Exercise of stock options	$ 2		525				527			527
Excess tax benefit from stock-based compensation			1,757				1,757			$ 1,757
Acquisition of Class A treasury stock (in shares)						1,561,206				1,561,206
Acquisition of Class A treasury stock						$ (8,317)	(8,317)			$ (8,317)
Noncontrolling interest								3,616		3,616
Balance (in shares) at Jun. 29, 2014	38,119,398	42,058,594				16,098,437
Balance at Jun. 29, 2014	$ 381	$ 420	305,510	(68,565)	(46)	$ (54,472)	183,228	2,890		186,118
Net income				20,287			20,287	(903)		19,384
Translation adjustment					(325)		(325)	(180)		(505)
Conversion of Class B stock into Class A stock (in shares)	2,748,550	(2,748,550)							2,748,550
Conversion of Class B stock into Class A stock	$ 27	$ (27)
Stock-based compensation (in shares)	1,154,173
Stock-based compensation	$ 12		5,950				5,962			5,962
Exercise of stock options (in shares)	853,170
Exercise of stock options	$ 9		5,533				5,542			5,542
Excess tax benefit from stock-based compensation			2,115				2,115			$ 2,115
Acquisition of Class A treasury stock (in shares)						1,056,038				1,056,038
Acquisition of Class A treasury stock						$ (8,360)	(8,360)			$ (8,360)
Balance (in shares) at Jun. 28, 2015	42,875,291	39,310,044				17,154,475
Balance at Jun. 28, 2015	$ 429	$ 393	319,108	(48,278)	(371)	$ (62,832)	208,449	1,807		210,256
Net income				36,875			36,875	(1,007)		35,868
Translation adjustment					165		165	87		252
Conversion of Class B stock into Class A stock (in shares)	4,047,040	(4,047,040)							4,047,040
Conversion of Class B stock into Class A stock	$ 40	$ (40)
Stock-based compensation (in shares)	879,863
Stock-based compensation	$ 9		6,334				6,343			6,343
Exercise of stock options (in shares)	1,044,255
Exercise of stock options	$ 10		3,507				3,517			3,517
Excess tax benefit from stock-based compensation			2,400				2,400			$ 2,400
Acquisition of Class A treasury stock (in shares)						1,714,550				1,714,550
Acquisition of Class A treasury stock						$ (15,223)	(15,223)			$ (15,223)
Balance (in shares) at Jul. 03, 2016	48,846,449	35,263,004				18,869,025
Balance at Jul. 03, 2016	$ 488	$ 353	$ 331,349	$ (11,403)	(146)	$ (78,055)	242,586			242,586
Noncontrolling interest write-off					$ 60		$ 60	$ (887)		$ (827)