Note 2 - Accounts Receivable (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Contracts in Transit [Member]
Accounts receivable gross	$ 153,126	$ 168,460
Trade Accounts Receivable [Member]
Accounts receivable gross	37,543	33,749
Vehicle Receivables [Member]
Accounts receivable gross	31,833	36,470
Manufacturer Receivables [Member]
Accounts receivable gross	53,059	59,215
Auto Loans Receivables [Member]
Accounts receivable gross	50,811	42,490
Other Receivables [Member]
Accounts receivable gross	3,023	3,033
Accounts receivable gross	329,395	343,417
Less: Allowances	(3,729)	(2,243)
Less: Long-term portion of accounts receivable, net	(39,374)	(32,712)
Total accounts receivable, net	$ 286,292	$ 308,462