Note 2 - Stock-Based Compensation (Details) - Stock Based Compensation Plan Expenses - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Note 2 - Stock-Based Compensation (Details) - Stock Based Compensation Plan Expenses [Line Items]
Share based compensation expense	$ 10,475	$ 8,859	$ 29,191	$ 24,872
Cost of Sales [Member]
Note 2 - Stock-Based Compensation (Details) - Stock Based Compensation Plan Expenses [Line Items]
Share based compensation expense	303	246	829	669
Research and Development Expense [Member]
Note 2 - Stock-Based Compensation (Details) - Stock Based Compensation Plan Expenses [Line Items]
Share based compensation expense	2,932	2,388	8,055	6,638
Selling, General and Administrative Expenses [Member]
Note 2 - Stock-Based Compensation (Details) - Stock Based Compensation Plan Expenses [Line Items]
Share based compensation expense	$ 7,240	$ 6,225	$ 20,307	$ 17,565