Summary of Significant Accounting Policies Concentration of Credit Risk (Details)	12 Months Ended
	Jun. 30, 2018	Jun. 24, 2017	Jun. 25, 2016	Jun. 28, 2014
Avnet Electronics [Member] | Net sales revenue [Member]
Concentration Risk [Line Items]
Concentration risk	25.00%	22.00%	19.00%
Avnet Electronics [Member] | Accounts receivable [Member]
Concentration Risk [Line Items]
Concentration risk	22.00%	22.00%
Samsung [Member] | Net sales revenue [Member]
Concentration Risk [Line Items]
Concentration risk	10.00%	10.00%	14.00%
Samsung [Member] | Accounts receivable [Member]
Concentration Risk [Line Items]
Concentration risk	12.00%	11.00%
No other customer [Member] | Net sales revenue [Member]
Concentration Risk [Line Items]
Concentration risk	10.00%		10.00%	10.00%
No other customer [Member] | Accounts receivable [Member]
Concentration Risk [Line Items]
Concentration risk	10.00%		10.00%
Distributors [Member] | Net sales revenue [Member]
Concentration Risk [Line Items]
Concentration risk	47.00%