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Note 14 - Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified | Dec. 31, 2014
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Construction Contracts for Facilities [Member] |
Note 14 - Commitments and Contingencies (Details) [Line Items] |
Purchase Commitment, Remaining Minimum Amount Committed | $ 49.0 us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = rusha_ConstructionContractsForFacilitiesMember
Information Technology Contracts [Member] |
Note 14 - Commitments and Contingencies (Details) [Line Items] |
Purchase Commitment, Remaining Minimum Amount Committed | $ 22.5 us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = rusha_InformationTechnologyContractsMember

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- Definition Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.25) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 25 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 17 -Article 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.17) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.(a)(19)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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