Note 12 - Accounts Receivable and Allowance for Credit Losses - Allowance for Accounts Receivable (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2022 USD ($)
Balance	$ 1,590
Current period provision	1,900
Balance	2,137
Write offs against allowance, net of recoveries	(1,353)
Commercial Vehicle Receivables [Member]
Balance	76
Current period provision	53
Balance	129
Manufacturers' Receivables [Member]
Balance	419
Current period provision	756
Balance	623
Write offs against allowance, net of recoveries	(552)
Leasing, Parts and Service Receivables [Member]
Balance	1,069
Current period provision	1,091
Balance	1,362
Write offs against allowance, net of recoveries	(798)
Other Receivables [Member]
Balance	26
Balance	23
Write offs against allowance, net of recoveries	$ (3)