Restricted Stock Units Stock-Based Compensation (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 26, 2017	Mar. 27, 2016	Mar. 26, 2017	Mar. 27, 2016
Restricted Stock Units Stock-Based Compensation Narrative Details
Stock-based compensation expense related to restricted stock units	$ 33,000	$ 0	$ 73,000	$ 0
Unamortized stock-based compensation expense related to restricted stock units			$ 500,000