Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Balance Sheet Components - Schedule of Inventory (Detail)

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Note 5 - Balance Sheet Components - Schedule of Inventory (Detail) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Inventory, Net [Abstract]    
Raw materials $ 0 $ 0
Work-in-process 0 0
Finished goods 6,114 8,568
Inventory $ 6,114 $ 8,568