CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
CURRENT ASSETS:
Cash and cash equivalents	$ 59,735	$ 60,708
Short-term marketable securities	91,222	114,575
Accounts receivable, net of allowances of $319 and $191 in 2015 and 2014, respectively (Note 2)	11,061	10,186
Inventories	55,439	64,025
Deferred tax assets	75	39
Prepaid expenses and other current assets	5,780	16,379
Total current assets	223,312	265,912
PROPERTY AND EQUIPMENT, net	102,223	95,823
INTANGIBLE ASSETS, net	39,957	35,524
GOODWILL	91,849	80,599
DEFERRED TAX ASSETS	10,647	11,562
OTHER ASSETS	5,502	4,243
Total assets	473,490	493,663
CURRENT LIABILITIES:
Accounts payable	23,370	21,980
Accrued payroll and related expenses	8,203	9,071
Taxes payable	2,022	2,963
Deferred tax liabilities	1,985	2,193
Deferred income on sales to distributors	16,464	15,223
Other accrued liabilities	3,182	3,730
Total current liabilities	55,226	55,160
LONG-TERM INCOME TAXES PAYABLE	746	743
DEFERRED TAX LIABILITIES	3,752	4,272
OTHER LIABILITIES	2,569	2,812
Total liabilities	$ 62,293	$ 62,987
COMMITMENTS AND CONTINGENCIES (Notes 9, 11, 12 and 15)
STOCKHOLDERS’ EQUITY:
Common stock	$ 28	$ 29
Additional paid-in capital	136,422	171,938
Accumulated other comprehensive loss	(1,043)	(1,136)
Retained earnings	275,790	259,845
Total stockholders’ equity	411,197	430,676
Total liabilities and stockholders’ equity	$ 473,490	$ 493,663