Note 3 - Balance Sheet Components (Details) - Property and Equipment (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Property and equipment, net:
Property and Equipment	$ 23,598	$ 21,545
Less: accumulated depreciation	(14,919)	(14,481)
Total	8,679	7,064
Computer Equipment [Member]
Property and equipment, net:
Property and Equipment	10,033	9,969
Software and Software Development Costs [Member]
Property and equipment, net:
Property and Equipment	3,374	3,441
Furniture and Fixtures [Member]
Property and equipment, net:
Property and Equipment	739	734
Leasehold Improvements [Member]
Property and equipment, net:
Property and Equipment	1,118	1,052
Equipment [Member]
Property and equipment, net:
Property and Equipment	5,693	4,928
Construction in Progress [Member]
Property and equipment, net:
Property and Equipment	$ 2,641	$ 1,421