Note 3 - Significant Accounting Policies - Intangible Asset Expected Useful Life (Details)	12 Months Ended
	Dec. 29, 2019
Customer Relationships [Member]
Intangible Asset, Useful Life (Year)	10 years
Order or Production Backlog [Member]
Intangible Asset, Useful Life (Year)	1 year 182 days
Trade Names [Member]
Intangible Asset, Useful Life (Year)	1 year
Noncompete Agreements [Member]
Intangible Asset, Useful Life (Year)	2 years