Note 18 - Commitments (Details Textual) - USD ($) $ in Thousands		12 Months Ended
Jan. 01, 2021	Jan. 01, 2022	Jan. 02, 2021
Operating Lease, Impairment Loss		$ 0	$ 2,231
COVID-19 [Member]
Operating Lease, Impairment Loss	$ 1,900
Operating Lease, Right-of-use Asset, Write-off	$ 300

Amount of loss from impairment of right-of-use asset from operating lease.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 25
-Paragraph 6
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123399704&loc=SL77918431-209957

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