Note K - Leases - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 19, 2022	Mar. 20, 2021
Operating Lease Cost	$ 338	$ 311
Short-term Lease Cost	501	523
Variable Lease Cost	182	86
Total Operating Lease Cost	1,021	920
Operating Lease – Operating Cash Flows	$ 303	255
New ROU Assets – Operating Leases (non-cash)		$ 827
Weighted Average Remaining Lease Term – Operating Leases (in years) (Year)	4 years 1 month 13 days	1 year 10 months 24 days
Weighted Average Discount Rate – Operating Leases	5.00%	5.00%