XML 19 R37.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Note 7 - Debt (Details) - Current and Long-term Debt (Parentheticals) | Jun. 30, 2014 | Dec. 31, 2013
--- | --- | ---
Revenue Equipment Installment Notes [Member] |  |
Note 7 - Debt (Details) - Current and Long-term Debt (Parentheticals) [Line Items] |  |
Interest rate on notes payable, current | 4.00% | 4.70%
Interest rate on notes payable, long-term | 4.00% | 4.70%
Real Estate Note [Member] |  |
Note 7 - Debt (Details) - Current and Long-term Debt (Parentheticals) [Line Items] |  |
Interest rate on notes payable, current | 2.50% | 2.40%
Interest rate on notes payable, long-term | 2.50% | 2.40%
Other Note Payable [Member] |  |
Note 7 - Debt (Details) - Current and Long-term Debt (Parentheticals) [Line Items] |  |
Interest rate on notes payable, current | 3.00% | 3.00%
Interest rate on notes payable, long-term | 3.00% | 3.00%

X
- Details
Name: | cvti_Note7DebtDetailsCurrentandLongtermDebtParentheticalsLineItems
Namespace Prefix: | cvti_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant