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Stock compensation expense (Details)	12 Months Ended
	Jun. 26, 2016 USD ($)	Jun. 28, 2015 USD ($)
Stock compensation expense Details
Stock compensation expense related to stock options	$ 200,000	$ 100,000
Fair value of the restricted stock units granted	5.99

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Fair value of the restricted stock units granted

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Stock compensation expense related to stock options

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