Note 7 - Restructuring Charges (Details Textual) - Fiscal 2018 Plan [Member] $ in Millions |
3 Months Ended |
|---|---|
|
Apr. 29, 2017
USD ($)
| |
| Purchased Intellectual Property - Not Yet Deployed [Member] | |
| Impairment of Intangible Assets, Finite-lived | $ 3.0 |
| Maximum [Member] | |
| Payments for Restructuring | 0.1 |
| General and Administrative Expense [Member] | |
| Restructuring Charges | $ 0.4 |