Note 5 - Leases - Future Lease Payments (Details) $ in Thousands	Dec. 28, 2019 USD ($)
Operating leases, remainder current year	$ 111
Finance leases, remainder current year	12
Total, remainder current year	123
Operating leases, 2021	458
Finance leases, 2021	20
Total, 2021	478
Operating leases, 2022	473
Finance leases, 2022
Total, 2022	473
Operating leases, 2023	487
Finance leases, 2023
Total, 2023	487
Operating leases, thereafter	209
Finance leases, thereafter
Total, thereafter	209
Total future minimum lease payments, operating leases	1,738
Total future minimum lease payments, finance leases	32
Total future minimum lease payments	1,770
Less: imputed interest, operating leases	(199)
Less: imputed interest, finance leases	(1)
Less: imputed interest, total	(200)
Operating leases, present value of lease liabilities	1,539
Finance leases, present value of lease liabilities	31
Total present value of lease liabilities	$ 1,570