Note 17 - Employee Benefit Plan (Details Textual) - USD ($) $ in Thousands		12 Months Ended
	Jan. 01, 2022	Dec. 31, 2021
The 401(k) Plan [Member]
Defined Contribution Plan, Employer Discretionary Contribution Amount		$ 0
The 401K Plan Contribution Level One [Member]
Defined Contribution Plan, Employer Matching Contribution, Percent of Match	100.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	3.00%
The 401K Plan Contribution Level Two [Member]
Defined Contribution Plan, Employer Matching Contribution, Percent of Match	50.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	2.00%