CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands	Jul. 02, 2011	Apr. 02, 2011
Current Assets:
Cash and cash equivalents	$ 34,958	$ 23,962
Short-term investments	100,475	109,760
Trade accounts receivable, net	8,976	8,100
Inventories	19,569	20,600
Prepaid expenses and other current assets	2,544	2,975
Prepaid income taxes	6,613	6,461
Deferred income taxes	7,184	7,228
Total current assets	180,319	179,086
Long-term investments	28,200	30,200
Property, plant and equipment, net	5,628	5,708
Other assets	602	622
Long-term deferred income taxes	4,853	4,980
Total assets	219,602	220,596
Current Liabilities:
Trade accounts payable	4,159	3,283
Accrued salaries and employee benefits	12,494	12,430
Other accrued liabilities	900	772
Deferred revenue	3,748	3,664
Income taxes payable	325	2,264
Total current liabilities	21,626	22,413
Income taxes payable, noncurrent	5,079	4,974
Other accrued liabilities, noncurrent	291	290
Total liabilities	26,996	27,677
Commitments and contingencies (Note 9)
Preferred stock, no par value -- 10,000 shares authorized, none issued and outstanding	0	0
Common stock, no par value -- 30,000 shares authorized; issued and outstanding 12,672 shares as of July 2, 2011 and 12,808 shares as of April 2, 2011	68,550	68,499
Accumulated other comprehensive loss	(1,345)	(1,683)
Retained earnings	125,401	126,103
Total shareholders' equity	192,606	192,919
Total liabilities and shareholders' equity	$ 219,602	$ 220,596