Note 15 - Concentrations (Details Textual) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Accounts Receivable, before Allowance for Credit Loss	$ 53.4	$ 50.2
Revenue Benchmark [Member] | Customer Concentration Risk [Member]
Number of Customers	4	2
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Four Customers [Member]
Concentration Risk, Percentage	75.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Customer One [Member]
Concentration Risk, Percentage	27.00%	11.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Customer Two [Member]
Concentration Risk, Percentage	23.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Customer Three [Member]
Concentration Risk, Percentage	15.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Customer Four [Member]
Concentration Risk, Percentage	10.00%	15.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Two Customers [Member]
Concentration Risk, Percentage		26.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member]
Number of Customers	4	2
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer One [Member]
Concentration Risk, Percentage	11.00%	16.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer Two [Member]
Concentration Risk, Percentage	26.00%	30.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer Three [Member]
Concentration Risk, Percentage	14.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer Four [Member]
Concentration Risk, Percentage	21.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Two Customers [Member]
Concentration Risk, Percentage		46.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Three Customers [Member]
Concentration Risk, Percentage	72.00%
Cost of Goods and Service Benchmark [Member] | Supplier Concentration Risk [Member]
Number of Supplier		1
Cost of Goods and Service Benchmark [Member] | Supplier Concentration Risk [Member] | One Supplier [Member]
Concentration Risk, Percentage		12.00%
Workforce Subject to Collective-Bargaining Arrangements [Member] | Labor Force Concentration Risk [Member]
Concentration Risk, Percentage	13.00%	15.00%