Industry and Segment Information (Details 1) - USD ($) $ in Thousands	3 Months Ended
	Sep. 26, 2015	Sep. 27, 2014	Jun. 27, 2015
Schedule of net revenues and long-lived assets by geographical segment
Total net revenues	$ 31,570	$ 33,259
Total long-lived assets	55,947		$ 57,746
China (including Hong Kong) [Member]
Schedule of net revenues and long-lived assets by geographical segment
Total net revenues	14,847	16,178
Total long-lived assets	29,866		31,211
Taiwan [Member]
Schedule of net revenues and long-lived assets by geographical segment
Total net revenues	11,297	10,805
Total long-lived assets	10,349		10,974
United States [Member]
Schedule of net revenues and long-lived assets by geographical segment
Total net revenues	1,078	1,462
Total long-lived assets	14,178		14,392
Korea [Member]
Schedule of net revenues and long-lived assets by geographical segment
Total long-lived assets	1,349		1,024
Others (less than 10% each) [Member]
Schedule of net revenues and long-lived assets by geographical segment
Total net revenues	4,348	$ 4,814
Total long-lived assets	$ 205		$ 145