Note 12 - Commitments (Details Textual) - USD ($) $ in Thousands |
Mar. 31, 2019 |
Dec. 30, 2018 |
|---|---|---|
| Open Non-cancellable Purchase Orders for Raw Materials [Member] | ||
| Purchase Obligation, Due in Next Twelve Months | $ 23,785 | $ 39,951 |
| Indemnification Agreement [Member] | ||
| Loss Contingency Accrual, Ending Balance | $ 0 | $ 0 |
| X | ||||||||||
- Definition Amount of loss contingency liability. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Minimum amount of purchase arrangement maturing in the next fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|