Note 4 - Balance Sheet Components (Details) - Other Assets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Other Assets [Abstract]
Deferred offering costs	$ 3,787
Deferred costs and commissions	707	365
Facility deposits for operating leases	705	683
Others	34	64
Other assets	$ 5,233	$ 1,112