Note 11 - Derivate Financial Instruments - Effect of Derivative Instruments on Consolidated Statements of Operations (Details) - Floor Plan Interest Expense [Member] - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Interest Rate Swap Contract, Amount of Gain Recognized in Accumulated OCI (Effective Portion)	$ 233	$ 599	$ 505
Interest Rate Swap Contract, Amount of Loss Reclassified from Accumulated OCI into Income (Effective Portion)	(219)	(449)	(488)
Interest Rate Swap Contract, Amount of Loss Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	(352)	(758)	(732)
Interest Rate Swap Contract, Amount of Gain Recognized in Accumulated OCI (Effective Portion)	233	599	505
Loss on cash flow hedges	(219)	(449)	(488)
Interest Rate Swap Contract, Amount of Loss Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	$ (352)	$ (758)	$ (732)

The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4D
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624177-113959

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- Definition

The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
-Section 50
-Paragraph 1
-Subparagraph (a)(1),(2)
-URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986

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- Definition

The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

+ References

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