CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 29, 2013	Mar. 30, 2013
Current Assets:
Cash and cash equivalents	$ 29,184	$ 16,414
Short-term investments	126,456	123,847
Trade accounts receivable, net	7,688	7,335
Inventories	11,418	11,344
Prepaid expenses and other current assets	2,551	2,538
Prepaid income taxes	3,285	3,203
Deferred income taxes	7,768	7,517
Total current assets	188,350	172,198
Long-term investments	1,900	13,800
Property, plant and equipment, net	4,164	4,334
Other assets	759	787
Deferred income taxes, noncurrent	5,292	5,659
Total assets	200,465	196,778
Current Liabilities:
Trade accounts payable	2,819	2,521
Accrued salaries and employee benefits	13,229	13,230
Other accrued liabilities	1,148	633
Deferred revenue	2,661	2,651
Income taxes payable	241	165
Total current liabilities	20,098	19,200
Income taxes payable, noncurrent	2,626	3,535
Deferred tax liabilities, noncurrent	115	115
Other accrued liabilities, noncurrent	579	575
Total liabilities	23,418	23,425
Commitments and contingencies (Note 8)
Preferred stock, no par value -- 10,000 shares authorized; none issued and outstanding
Common stock, no par value -- 30,000 shares authorized; issued and outstanding 11,525 shares as of June 29, 2013 and 11,526 shares as of March 30, 2013	69,237	68,389
Accumulated other comprehensive loss	(348)	(564)
Retained earnings	108,158	105,528
Total shareholders' equity	177,047	173,353
Total liabilities and shareholders' equity	$ 200,465	$ 196,778