Note 16 - Contingencies (Details Textual) $ in Thousands	6 Months Ended
	Jun. 29, 2019 USD ($)
Loss Contingency, Damages Sought, Value	$ 10,300
Estimated Litigation Liability	0
Loss Contingency, Receivable, Ending Balance	11,200
Loss Contingency, Estimate of Possible Loss	$ 10,300