Total intrinsic value of options (Details) (USD $)	Jun. 29, 2014	Jun. 30, 2013
Total intrinsic value of options
Weighted-average fair value of options granted during the year	$ 3.64	$ 1.29
Total intrinsic value of options exercised	$ 82,845
Total intrinsic value of options outstanding	3,100,000
Total intrinsic value of options exercisable	1,200,000