Note 1 - Summary of Significant Accounting Policies (Details Textual) $ in Thousands	12 Months Ended
	Dec. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)	Jan. 01, 2022 USD ($)
Cash and Cash Equivalents, at Carrying Value	$ 6,284	$ 339	$ 235
Property, Plant and Equipment, Useful Life (Year)	5 years
Number of Reporting Units	3
Goodwill, Impairment Loss	$ 0	0	0
Capitalized Computer Software, Additions	1,947	282	1,256
Capitalized Computer Software, Net	2,325	977	1,350
Deferred Tax Assets, Valuation Allowance	0	0	0
Revenue from Contract with Customer, Including Assessed Tax	263,237	284,680	203,875
Contract with Customer, Liability	1,900	1,100	3,400
Contract with Customer, Liability, Revenue Recognized	1,100	3,400	400
Advertising Expense	$ 781	$ 925	$ 914
Revenue, Segment Benchmark [Member] | Customer Concentration Risk [Member] | Two Customers [Member]
Number of Customers	2	2
Revenue, Segment Benchmark [Member] | Customer Concentration Risk [Member] | Customer 1 [Member]
Concentration Risk, Percentage	17.10%	13.20%
Revenue, Segment Benchmark [Member] | Customer Concentration Risk [Member] | Customer 2 [Member]
Concentration Risk, Percentage	10.10%	12.70%
Revenue, Segment Benchmark [Member] | Customer Concentration Risk [Member] | Ten Largest Customers [Member]
Number of Customers	10	10	10
Concentration Risk, Percentage	50.40%	53.70%	52.50%
Revenue, Segment Benchmark [Member] | Customer Concentration Risk [Member] | Twenty Largest Customers [Member]
Number of Customers	20	20	20
Concentration Risk, Percentage	62.70%	67.00%	65.10%
Revenue, Segment Benchmark [Member] | Customer Concentration Risk [Member] | Five Largest Customers [Member]
Concentration Risk, Percentage	39.10%	43.00%	35.80%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Two Customers [Member]
Number of Customers	2	2	2
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer 1 [Member]
Concentration Risk, Percentage	21.20%	16.10%	15.30%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer 2 [Member]
Concentration Risk, Percentage	14.70%	12.50%	14.20%
Transit Accounts Payable [Member]
Accounts Payable, Current	$ 31,100	$ 9,800	$ 2,100
Accounts Payable, Net	22,200	6,500	1,100
Transit Accounts Receivable [Member]
Accounts Receivable, before Allowance for Credit Loss, Current	8,900	3,300	1,000
Service, Other [Member]
Revenue from Contract with Customer, Including Assessed Tax	$ 1,700	2,200	1,800
Restricted Covenants [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	4 years
Customer Relationships [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	6 years
CANADA
Cash and Cash Equivalents, at Carrying Value	$ 103	79	21
Revenue from Contract with Customer, Including Assessed Tax	6,480	4,708	9,578
SERBIA
Cash and Cash Equivalents, at Carrying Value	638	203	169
GERMANY
Cash and Cash Equivalents, at Carrying Value	54
NETHERLANDS
Cash and Cash Equivalents, at Carrying Value	$ 4	$ 16	$ 2