Note 17 - Leases - Balance Sheet Information (Details) - USD ($) $ in Thousands	Apr. 03, 2021	Jan. 02, 2021
Operating lease right of use assets	$ 2,263	$ 2,409
Operating right of use liability - current	(1,937)	(1,886)
Operating right of use liability - non-current	(2,224)	(2,641)
Total operating lease liabilities	(4,161)	(4,527)
Property and equipment - (right of use assets)	1,140	1,140
Accumulated depreciation	(837)	(746)
Property and equipment, net	303	394
Finance lease liability - current	(183)	(247)
Finance lease liability - non-current	(96)	(106)
Total finance lease liabilities	$ (279)	$ (353)
Operating leases (years) (Year)	1 year 131 days	2 years 10 days
Finance leases (years) (Year)	1 year 156 days	1 year 164 days
Operating leases	3.08%	4.06%
Finance leases	2.88%	2.63%