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Note 5 - Goodwill and Franchise Value (Tables) | 12 Months Ended
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Dec. 31, 2016
Notes Tables |
Schedule of Goodwill [Table Text Block] |
|  | Domestic |  |  | Import |  |  | Luxury |  |  | Consolidated |
Balance as of December 31, 2014 ¹ |  | $ | 91,011 |  |  | $ | 79,601 |  |  | $ | 28,763 |  |  | $ | 199,375 |
Additions through acquisitions |  |  | 6,892 |  |  |  | 5,029 |  |  |  | 2,170 |  |  |  | 14,091 |
Reductions through divestitures |  |  | — |  |  |  | (246 | ) |  |  | — |  |  |  | (246 | )
Balance as of December 31, 2015 ¹ |  |  | 97,903 |  |  |  | 84,384 |  |  |  | 30,933 |  |  |  | 213,220 |
Additions through acquisitions |  |  | 18,154 |  |  |  | 21,795 |  |  |  | 7,448 |  |  |  | 47,397 |
Reductions through divestitures |  |  | (1,218 | ) |  |  | — |  |  |  | — |  |  |  | (1,218 | )
Balance as of December 31, 2016 ¹ |  | $ | 114,839 |  |  | $ | 106,179 |  |  | $ | 38,381 |  |  | $ | 259,399 |
Schedule of Indefinite-Lived Intangible Assets [Table Text Block] |
|  | Franchise Value |
Balance as of December 31, 2014 |  | $ | 150,892 |
Additions through acquisitions |  |  | 6,843 |
Reductions through divestitures |  |  | (36 | )
Balance as of December 31, 2015 |  |  | 157,699 |
Additions through acquisitions |  |  | 27,087 |
Reductions through divestitures |  |  | (518 | )
Balance as of December 31, 2016 |  | $ | 184,268 |

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance and exist in perpetuity, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b),(d) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275 + Details
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