Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 28, 2015	Jun. 28, 2014
Current assets:
Cash and cash equivalents	$ 39,208	$ 33,020
Short-term investments in marketable securities	99,824	86,104
Accounts receivable
Trade (net of reserves and allowances of $1,653 and $2,461)	22,918	24,036
Other receivables	2,370	2,878
Inventories	14,078	12,288
Prepaid expenses and other current assets	2,349	2,458
Deferred income taxes	764	726
Total current assets	181,511	161,510
Property, plant and equipment - net	56,865	58,537
Investments in unconsolidated affiliates	2,413	2,445
Deferred income taxes - non-current	2,518	2,460
Intangible assets (net of accumulated amortization of $14,843 and $12,849)	4,772	7,009
Other assets	7,964	8,118
Total assets	256,043	240,079
Current liabilities:
Accounts payable	13,752	8,927
Accrued liabilities	11,896	9,934
Total current liabilities	25,648	18,861
Industrial development subsidy	5,606	6,354
Deferred income taxes	4,820	5,460
Non-current tax liabilities	1,065	1,041
Other long-term liabilities	896	871
Total liabilities	38,035	32,587
Commitments and contingencies (Note 6)
Shareholders' equity:
Common stock and paid in capital - no par value, 60,000,000 shares authorized; shares issued and outstanding: March 28, 2015, 22,522,000; June 28, 2014, 21,974,000	118,618	113,118
Retained earnings	90,472	83,204
Accumulated other comprehensive income, net of tax	8,918	11,170
Total shareholders' equity	218,008	207,492
Total liabilities and shareholders' equity	$ 256,043	$ 240,079