CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
CURRENT ASSETS:
Cash and cash equivalents	$ 62,134	$ 90,092
Short-term marketable securities	188,323	83,769
Accounts receivable, net of allowance of $525 and $318 in 2016 and 2015, respectively	6,961	7,818
Inventories	52,564	51,934
Prepaid expenses and other current assets	8,520	6,790
Total current assets	318,502	240,403
PROPERTY AND EQUIPMENT, net	95,296	99,381
INTANGIBLE ASSETS, net	31,502	38,165
GOODWILL	91,849	91,849
DEFERRED TAX ASSETS	12,032	11,843
OTHER ASSETS	6,157	5,896
Total assets	555,338	487,537
CURRENT LIABILITIES:
Accounts payable	29,727	21,660
Accrued payroll and related expenses	10,756	9,327
Taxes payable	729	3,620
Deferred income on sales to distributors	16,207	15,101
Other accrued liabilities	2,434	2,285
Total current liabilities	59,853	51,993
LONG-TERM INCOME TAXES PAYABLE	2,639	2,511
DEFERRED TAX LIABILITIES	820	1,291
OTHER LIABILITIES	3,921	3,123
Total liabilities	67,233	58,918
COMMITMENTS AND CONTINGENCIES (NOTES 8, 9 and 10)
STOCKHOLDERS’ EQUITY:
Common stock, $0.001 par value Authorized - 140,000,000 shares Outstanding - 29,249,635 and 28,652,178 shares in 2016 and 2015, respectively	28	28
Additional paid-in capital	172,875	145,366
Accumulated other comprehensive loss	(2,710)	(1,851)
Retained earnings	317,912	285,076
Total stockholders’ equity	488,105	428,619
Total liabilities and stockholders’ equity	$ 555,338	$ 487,537