Income taxes - Provision for Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Jun. 26, 2014	Jun. 27, 2013	Jun. 28, 2012
Current:
Federal	$ 11,274	$ 12,405	$ 8,420
State	1,704	2,078	1,488
Total current	12,978	14,483	9,908
Deferred:
Deferred federal	375	(1,205)	(750)
Deferred state	192	258	(59)
Total deferred	567	(947)	(809)
Total income tax expense	$ 13,545	$ 13,536	$ 9,099

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.