Note 12 - Segment and Geographical Information (Details Textual) |
3 Months Ended | |
|---|---|---|
Apr. 29, 2017 |
Apr. 30, 2016 |
|
| Number of Reportable Segments | 1 | |
| Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Arris Global [Member] | ||
| Concentration Risk, Percentage | 19.00% | |
| Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Sunjet Components Corporation [Member] | ||
| Concentration Risk, Percentage | 16.00% | 22.00% |
| Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Silicon Application [Member] | ||
| Concentration Risk, Percentage | 16.00% | 11.00% |