Industry and Segment Information (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Mar. 30, 2013	Mar. 31, 2012	Jun. 30, 2012
Schedule of net sales and net book value of long-lived assets by geographical segment
Total net revenues	$ 30,366	$ 33,378	$ 97,548	$ 99,191
Total long-lived assets	60,329		60,329		56,102
China (including Hong Kong) [Member]
Schedule of net sales and net book value of long-lived assets by geographical segment
Total net revenues	15,459	11,543	45,549	34,422
Total long-lived assets	35,567		35,567		37,761
Taiwan [Member]
Schedule of net sales and net book value of long-lived assets by geographical segment
Total net revenues	8,635	15,227	33,721	45,232
Total long-lived assets	14,831		14,831		15,005
United States [Member]
Schedule of net sales and net book value of long-lived assets by geographical segment
Total net revenues	1,969	2,010	5,008	5,670
Total long-lived assets	9,092		9,092		2,304
Korea [Member]
Schedule of net sales and net book value of long-lived assets by geographical segment
Total long-lived assets	579		579		650
Others (less than 10% each) [Member]
Schedule of net sales and net book value of long-lived assets by geographical segment
Total net revenues	4,303	4,598	13,270	13,867
Total long-lived assets	$ 260		$ 260		$ 382