Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Name:	us-gaap_RestructuringCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Note 10 - Restructuring Charges (Details Textual) $ in Thousands	1 Months Ended	3 Months Ended		12 Months Ended
	Sep. 30, 2019 USD ($)	Mar. 29, 2020 USD ($)	Mar. 31, 2019 USD ($)	Dec. 29, 2019 USD ($)
Restructuring Charges (Recoveries)		$ (221)	$ 624
Dongguan Facility Closure [Member]
Restructuring and Related Cost, Number of Positions Eliminated	137
Restructuring and Related Cost, Expected Cost, Total	$ 2,037
Restructuring Charges, Total				$ 5,000