Note 11 - Guarantees - Changes in Accrued Warranty (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Beginning balance	$ 4,849	$ 4,350	$ 4,886
Warranty accruals	7,154	6,765	6,088
Warranty payments	(8,358)	(6,316)	(6,624)
Warranty liability assumed	4,369	50
Ending balance	$ 8,014	$ 4,849	$ 4,350

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.15(5))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Section 50
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- Definition

Amount of increase in the standard and extended product warranty accrual from a business acquisition.

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Amount of decrease in the standard and extended product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the standard and extended product warranty.

+ References

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-Publisher FASB
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Amount of increase in the standard and extended product warranty accrual from warranties issued.

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