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Note 13 - Income Taxes (Details Textual)
3 Months Ended 12 Months Ended
Apr. 03, 2016
Dec. 31, 2015
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 35.00% 35.00%
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent 30.00% 30.00%