Note 7 - Goodwill and Identifiable Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	December 31, 2014
	Gross		Accumulated Amortization		Net
Developed technology	$	71,570	$	2,857	$	68,713
Customer relationships		8,170		201		7,969
Trade name		920		46		874
Patents		1,579		112		1,467
In-process research and development		1,750		—		1,750
	$	83,989	$	3,216	$	80,773

Finite-lived Intangible Assets Amortization Expense [Table Text Block]

Cost of goods sold	$	2,857
Sales and marketing		201
General and administrative		158
	$	3,216

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

2015	$	12,730
2016		12,704
2017		12,678
2018		12,645
2019		11,075
Thereafter		17,191
	$	79,023

Finite-Lived Intangible Assets, Remaining Amortization Period [Table Text Block]

Developed technology	6.27
Customer relationship	9.75
Others	10.71