Note 3 - Credit Losses (Details Textual) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Accounts Receivable, Allowance for Credit Loss	$ 1,662	$ 1,366	$ 2,676	$ 2,970
Work Truck Attachments [Member]
Accounts Receivable, Allowance for Credit Loss	1,300	1,000	1,733	1,430
Work Truck Solutions [Member]
Accounts Receivable, Allowance for Credit Loss	$ 362	$ 366	$ 943	$ 1,540