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Note 8 - Financing Arrangements (Details) - Interest Expense Recognized on the Notes (Senior Convertible Notes [Member], USD $)
In Thousands, unless otherwise specified |
3 Months Ended |
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Mar. 30, 2014
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Senior Convertible Notes [Member]
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| Note 8 - Financing Arrangements (Details) - Interest Expense Recognized on the Notes [Line Items] | |
| Contractual interest expense at 2% per annum | $ 742 |
| Amortization of debt issuance costs | 131 |
| Accretion of debt discount | 1,141 |
| Total | $ 2,014 |