Note 11 - Leases - Balance Sheet Information (Details) - USD ($) $ in Thousands		Mar. 26, 2022	Dec. 25, 2021
Operating lease assets		$ 24,870	$ 25,060	[1]
Total lease assets		25,260	25,483
Total lease liabilities		$ 26,887	$ 27,093
Operating leases (Year)		6 years 8 months 12 days	6 years 10 months 24 days
Finance leases (Year)		1 year 7 months 6 days	1 year 9 months 18 days
Operating leases		6.20%	6.30%
Finance leases		0.90%	0.70%
Property, Plant and Equipment, Net [Member]
Finance lease assets	[2]	$ 390	$ 423
Other Accrued Liabilities [Member]
Operating, current		4,962	4,886
Finance, current		143	167
Long-term Lease Liabilities [Member]
Operating, noncurrent		21,732	21,977
Finance, noncurrent		$ 50	$ 63

[1] Derived from December 25, 2021 audited financial statements

[2] Finance lease assets are recorded net of accumulated amortization of $0.2 million and $0.1 million as of March 26, 2022 and December 25, 2021, respectively.