Note 9 - Leases - Balance Sheet Information (Details) - USD ($) $ in Thousands		Sep. 26, 2020	Dec. 28, 2019
Operating lease assets		$ 30,099	$ 33,269	[1]
Finance lease assets	[2]	463	2,515
Total lease assets		30,562	35,784
Operating, current		5,099	5,458
Finance, current		164	2,574
Operating, noncurrent		26,293	28,877
Finance, noncurrent		239	0
Total lease liabilities		$ 31,795	$ 36,909
Operating leases (Year)		7 years 6 months	7 years 10 months 24 days
Finance leases (Year)		2 years 6 months	6 months
Operating leases		6.30%	6.30%
Finance leases		0.00%	4.50%

[1] Derived from December 28, 2019 audited financial statements

[2] Finance lease assets are recorded net of accumulated amortization of $26,000 and $0.1 million as of September 26, 2020 and December 28, 2019 respectively.