CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
CURRENT ASSETS:
Cash and cash equivalents	$ 148,578	$ 155,667
Short-term investments	48,932	27,355
Accounts receivable, net of allowances of $202 and $275 in 2011 and 2010, respectively (Note 2)	10,330	5,713
Inventories	51,763	62,077
Deferred tax assets	1,440	1,435
Prepaid expenses and other current assets	6,864	9,263
Total current assets	267,907	261,510
INVESTMENTS	25,022	31,760
PROPERTY AND EQUIPMENT, net	85,271	84,470
INTANGIBLE ASSETS, net	9,066	9,795
GOODWILL	14,786	14,826
DEFERRED TAX ASSETS	12,637	13,421
OTHER ASSETS	25,799	17,288
Total assets	440,488	433,070
CURRENT LIABILITIES:
Accounts payable	17,318	20,291
Accrued payroll and related expenses	6,290	7,395
Taxes payable	1,759	0
Deferred income on sales to distributors	10,316	12,221
Other accrued liabilities	2,613	9,548
Total current liabilities	38,296	49,455
LONG-TERM INCOME TAXES PAYABLE	33,805	29,580
Total liabilities	72,101	79,035
COMMITMENTS AND CONTINGENCIES (Note 9, 11 and 12)
STOCKHOLDERS’ EQUITY:
Common stock	28	28
Additional paid-in capital	166,007	175,295
Accumulated other comprehensive income	80	85
Retained earnings	202,272	178,627
Total stockholders’ equity	368,387	354,035
Total liabilities and stockholders’ equity	$ 440,488	$ 433,070