Note 12 - Segment and Geographical Information - Net Revenue and Gross Profit by Segments (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Apr. 29, 2017 |
Apr. 30, 2016 |
|
| Sales revenue, net | $ 39,564 | $ 53,775 |
| Connected Smart TV Platforms [Member] | ||
| Sales revenue, net | 27,890 | 43,708 |
| IoT Devices [Member] | ||
| Sales revenue, net | 11,674 | 9,917 |
| License and Other [Member] | ||
| Sales revenue, net | $ 150 | |