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Note 15 - Acquisitions, Dispositions and Equity Method Investment (Details Textual) - USD ($) $ in Thousands |  |  |  |  | 12 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Oct. 31, 2019 | May 06, 2019 | Feb. 11, 2019 | Dec. 14, 2017 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Feb. 25, 2019
Payments to Acquire Businesses, Gross |  |  |  |  | $ 10,168 | $ (0) | $ 2,180 |
Rush Truck Centres of Canada Limited [Member] |  |  |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  |  |  |  | 50.00% |  |  | 50.00%
Rush Truck Centres of Canada Limited [Member] | Other Noncurrent Assets [Member] |  |  |  |  |  |  |  |
Equity Method Investments |  |  |  |  | $ 25,700 |  |  |
Stover Sales, Inc [Member] |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Gross |  | $ 2,300 |  |  |  |  |  |
Acquisition of Country Ford Trucks [Member] |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Gross |  |  | $ 7,900 |  |  |  |  |
Transwest San Diego, LLC [Member] |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Gross |  |  |  | $ 2,200 |  |  |  |
Central California Truck and Trailer Sales, LLC [Member] |  |  |  |  |  |  |  |
Proceeds from Divestiture of Businesses | $ 12,700 |  |  |  |  |  |  |

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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8813-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
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- Definition The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585 + Details
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