Note 15 - Income Taxes (Detail) - Significant components of deferred tax assets and liabilities: (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Deferred tax assets:
NOL carryover	$ 40,771	$ 58,870
Research and development credits	29,659	29,659
Compensatory and other accruals	1,200	688
Foreign tax credits	7,528	10,035
Fixed assets		155
Other, net	2,901	2,693
Gross deferred tax assets	82,059	102,100
Deferred tax liabilities:
Unremitted earnings	(29,425)	(30,667)
Unrealized loss on investments	(321)	(229)
Intangible assets	(8,886)
Fixed assets	(4,403)
Other, net		(30)
Gross deferred tax liabilities	(43,035)	(30,926)
Valuation allowance	(37,173)	(69,508)
Deferred tax assets, net	$ 1,851	$ 1,666