Note 6 - Valuation Accounts - Allowance for Accounts Receivable (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($)
Balance	$ 3,805
Current period provision	6,471
Balance	2,741
Write offs against allowance, net of recoveries	(7,535)
Commercial Vehicle Receivables [Member]
Balance	102
Current period provision	10
Balance	237
Manufacturers' Receivables [Member]
Balance	964
Current period provision	2,927
Balance	837
Write offs against allowance, net of recoveries	(3,054)
Leasing, Parts and Service Receivables [Member]
Balance	1,660
Current period provision	3,517
Balance	1,667
Write offs against allowance, net of recoveries	(3,510)
Other Receivables [Member]
Balance	1,079
Current period provision	17
Balance	0
Write offs against allowance, net of recoveries	$ (1,096)