CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
CURRENT ASSETS:
Cash and cash equivalents	$ 78,118	$ 63,394
Short-term marketable securities	102,051	31,766
Accounts receivable, net of allowances of $120 and $247 in 2013 and 2012, respectively (Note 2)	15,101	7,326
Inventories	40,212	44,625
Deferred tax assets	344	352
Prepaid expenses and other current assets	15,557	17,401
Total current assets	251,383	164,864
PROPERTY AND EQUIPMENT, net	90,217	89,724
INTANGIBLE ASSETS, net	42,212	47,738
GOODWILL	80,599	80,599
DEFERRED TAX ASSETS	15,263	11,532
OTHER ASSETS	3,965	4,673
Total assets	483,639	399,130
CURRENT LIABILITIES:
Accounts payable	20,267	16,452
Accrued payroll and related expenses	8,157	6,720
Taxes payable	2,128	1,213
Deferred tax liabilities	885	1,193
Deferred income on sales to distributors	16,861	11,550
Other accrued liabilities	2,661	3,439
Total current liabilities	50,959	40,567
LONG-TERM INCOME TAXES PAYABLE	8,916	7,937
DEFERRED TAX LIABILITIES	7,404	8,179
PENSION LIABILITY	1,456	1,398
Total liabilities	68,735	58,081
COMMITMENTS AND CONTINGENCIES (Notes 9, 11 and 12)
STOCKHOLDERS’ EQUITY:
Common stock	30	28
Additional paid-in capital	215,404	175,668
Accumulated other comprehensive loss	(358)	(293)
Retained earnings	199,828	165,646
Total stockholders’ equity	414,904	341,049
Total liabilities and stockholders’ equity	$ 483,639	$ 399,130