XML 21 R39.htm IDEA: XBRL DOCUMENT v2.4.1.9
Note 1 - Summary of Significant Accounting Policies (Details) (USD $)
 3 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
May 31, 2011
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]                          
Number of Reportable Segments                 1us-gaap_NumberOfReportableSegments        
Number of Asset Based Operating Fleets Aggregated in a Segment                 3cvti_NumberOfAssetBasedOperatingFleetsAggregatedInASegment        
Revenues $ 206,788,000us-gaap_Revenues $ 177,581,000us-gaap_Revenues [1] $ 173,654,000us-gaap_Revenues $ 160,957,000us-gaap_Revenues $ 176,487,000us-gaap_Revenues $ 170,843,000us-gaap_Revenues $ 172,488,000us-gaap_Revenues $ 164,731,000us-gaap_Revenues [2] $ 718,980,000us-gaap_Revenues $ 684,549,000us-gaap_Revenues $ 674,254,000us-gaap_Revenues    
Number of Major Customers                   0cvti_NumberOfMajorCustomers      
Accounts Receivable, Net, Current 95,943,000us-gaap_AccountsReceivableNetCurrent       81,242,000us-gaap_AccountsReceivableNetCurrent       95,943,000us-gaap_AccountsReceivableNetCurrent 81,242,000us-gaap_AccountsReceivableNetCurrent      
Allowance for Doubtful Accounts Receivable 1,767,000us-gaap_AllowanceForDoubtfulAccountsReceivable       1,736,000us-gaap_AllowanceForDoubtfulAccountsReceivable       1,767,000us-gaap_AllowanceForDoubtfulAccountsReceivable 1,736,000us-gaap_AllowanceForDoubtfulAccountsReceivable 1,729,000us-gaap_AllowanceForDoubtfulAccountsReceivable 1,711,000us-gaap_AllowanceForDoubtfulAccountsReceivable  
Goodwill 0us-gaap_Goodwill       0us-gaap_Goodwill       0us-gaap_Goodwill 0us-gaap_Goodwill 0us-gaap_Goodwill    
Drivers Advances And Other Receivables Net Of Allowance 5,770,000cvti_DriversAdvancesAndOtherReceivablesNetOfAllowance       5,356,000cvti_DriversAdvancesAndOtherReceivablesNetOfAllowance       5,770,000cvti_DriversAdvancesAndOtherReceivablesNetOfAllowance 5,356,000cvti_DriversAdvancesAndOtherReceivablesNetOfAllowance      
Auto Policy Release Premium Refund                 13,000,000cvti_AutoPolicyReleasePremiumRefund        
Non-cash Premium Credit Related to Commutation of Policies                     4,000,000cvti_NonCashPremiumCreditRelatedToCommutationOfPolicies    
Workers Compensation Self Insurance Per Claim                 1,300,000cvti_WorkersCompensationSelfInsurancePerClaim        
Employee Annual Insuarnce Deductible Per Claim                 400,000cvti_EmployeeAnnualInsuarnceDeductiblePerClaim        
Interest Costs Capitalized                 100,000us-gaap_InterestCostsCapitalized 0.1us-gaap_InterestCostsCapitalized 100,000us-gaap_InterestCostsCapitalized    
Non-asset Operations [Member] | Solutions [Member]                          
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]                          
Revenues                 2,300,000us-gaap_Revenues
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvti_NonAssetOperationsMember
/ dei_LegalEntityAxis
= cvti_SolutionsMember		 1,700,000us-gaap_Revenues
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvti_NonAssetOperationsMember
/ dei_LegalEntityAxis
= cvti_SolutionsMember		      
Factoring Receivables [Member]                          
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]                          
Accounts Receivable, Net, Current 15,800,000us-gaap_AccountsReceivableNetCurrent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvti_FactoringReceivablesMember		               15,800,000us-gaap_AccountsReceivableNetCurrent
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvti_FactoringReceivablesMember		        
Allowance for Doubtful Accounts Receivable 200,000us-gaap_AllowanceForDoubtfulAccountsReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvti_FactoringReceivablesMember		               200,000us-gaap_AllowanceForDoubtfulAccountsReceivable
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvti_FactoringReceivablesMember		        
Receivables from Insurers [Member]                          
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]                          
Drivers Advances And Other Receivables Net Of Allowance 100,000cvti_DriversAdvancesAndOtherReceivablesNetOfAllowance
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvti_ReceivablesFromInsurersMember		       1,000,000cvti_DriversAdvancesAndOtherReceivablesNetOfAllowance
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvti_ReceivablesFromInsurersMember		       100,000cvti_DriversAdvancesAndOtherReceivablesNetOfAllowance
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvti_ReceivablesFromInsurersMember		 1,000,000cvti_DriversAdvancesAndOtherReceivablesNetOfAllowance
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= cvti_ReceivablesFromInsurersMember		      
Tractors [Member]                          
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]                          
Property, Plant and Equipment, Useful Life                 5 years        
Property, Plant and Equipment, Salvage Value, Percentage 25.00%us-gaap_PropertyPlantAndEquipmentSalvageValuePercentage
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= cvti_TractorsMember		               25.00%us-gaap_PropertyPlantAndEquipmentSalvageValuePercentage
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= cvti_TractorsMember		        
Refrigerated Trailers [Member]                          
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]                          
Property, Plant and Equipment, Useful Life                 6 years        
Dry Van Trailers [Member]                          
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]                          
Property, Plant and Equipment, Useful Life                 10 years        
Property, Plant and Equipment, Salvage Value, Percentage 38.00%us-gaap_PropertyPlantAndEquipmentSalvageValuePercentage
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= cvti_DryVanTrailersMember		               38.00%us-gaap_PropertyPlantAndEquipmentSalvageValuePercentage
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= cvti_DryVanTrailersMember		        
Revenue Equipment [Member] | Minimum [Member]                          
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]                          
Property, Plant and Equipment, Useful Life                 3 years        
Capital Leases of Lessee, Term of Contract                 60 months        
Revenue Equipment [Member] | Maximum [Member]                          
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]                          
Property, Plant and Equipment, Useful Life                 10 years        
Capital Leases of Lessee, Term of Contract                 84 months        
Collateral for Collection Issues [Member]                          
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]                          
Accounts Payable 300,000us-gaap_AccountsPayableCurrentAndNoncurrent
/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis
= cvti_CollateralForCollectionIssuesMember		               300,000us-gaap_AccountsPayableCurrentAndNoncurrent
/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis
= cvti_CollateralForCollectionIssuesMember		        
Self Insurance [Member]                          
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]                          
Other Assets 600,000us-gaap_OtherAssets
/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis
= cvti_SelfInsuranceMember		       600,000us-gaap_OtherAssets
/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis
= cvti_SelfInsuranceMember		       600,000us-gaap_OtherAssets
/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis
= cvti_SelfInsuranceMember		 600,000us-gaap_OtherAssets
/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis
= cvti_SelfInsuranceMember		      
Primary Excess Layer of Casualty [Member]                          
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]                          
Liability for Claims and Claims Adjustment Expense 1,000,000us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense
/ cvti_InsuranceCoverageAmountAxis
= cvti_PrimaryExcessLayerOfCasualtyMember		               1,000,000us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense
/ cvti_InsuranceCoverageAmountAxis
= cvti_PrimaryExcessLayerOfCasualtyMember		        
Single Loss [Member]                          
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]                          
Liability for Claims and Claims Adjustment Expense 9,000,000us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense
/ cvti_InsuranceCoverageAmountAxis
= cvti_SingleLossMember		             9,000,000us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense
/ cvti_InsuranceCoverageAmountAxis
= cvti_SingleLossMember		 9,000,000us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense
/ cvti_InsuranceCoverageAmountAxis
= cvti_SingleLossMember		        
Each Policy Year [Member]                          
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]                          
Liability for Claims and Claims Adjustment Expense 18,000,000us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense
/ cvti_InsuranceCoverageAmountAxis
= cvti_EachPolicyYearMember		             18,000,000us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense
/ cvti_InsuranceCoverageAmountAxis
= cvti_EachPolicyYearMember		 18,000,000us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense
/ cvti_InsuranceCoverageAmountAxis
= cvti_EachPolicyYearMember		        
Aggregate for 3 Years Ended March 31, 2016 [Member]                          
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]                          
Liability for Claims and Claims Adjustment Expense 30,000,000us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense
/ cvti_InsuranceCoverageAmountAxis
= cvti_AggregateFor3YearsEndedMar312016Member		               30,000,000us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense
/ cvti_InsuranceCoverageAmountAxis
= cvti_AggregateFor3YearsEndedMar312016Member		        
Aggregate for 3 Years Ended March 31, 2013 [Member]                          
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]                          
Liability for Claims and Claims Adjustment Expense               27,000,000us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense
/ cvti_InsuranceCoverageAmountAxis
= cvti_AggregateFor3YearsEndedMar312013Member		          
Unspecified Customer [Member]                          
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]                          
Revenues                 82,500,000us-gaap_Revenues
/ us-gaap_MajorCustomersAxis
= cvti_UnspecifiedCustomerMember		        
Transport Enterprise Leasing, LLC [Member]                          
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]                          
Equity Method Investment, Ownership Percentage 49.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= cvti_TransportEnterpriseLeasingLLCMember		               49.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= cvti_TransportEnterpriseLeasingLLCMember		       49.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= cvti_TransportEnterpriseLeasingLLCMember
Sales Revenue, Net [Member] | Customer Concentration Risk [Member]                          
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]                          
Concentration Risk, Percentage                 38.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember		 34.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember		 32.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember		    
Number of Major Customers                 1cvti_NumberOfMajorCustomers
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember		   0cvti_NumberOfMajorCustomers
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember		    
Minimum [Member]                          
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]                          
Cash Advance for Factoring Receivables, Percentage 85.00%cvti_CashAdvanceForFactoringReceivablesPercentage
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		               85.00%cvti_CashAdvanceForFactoringReceivablesPercentage
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		        
Finite-Lived Intangible Asset, Useful Life                 4 years        
Liability for Claims and Claims Adjustment Expense 10,000,000us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		               10,000,000us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		        
Cargo Losses Purchased Coverage Per Claim                 300,000cvti_CargoLossesPurchasedCoveragePerClaim
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		        
Self Insured Cargo                 2,000,000cvti_SelfInsuredCargo
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		        
Maximum [Member]                          
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]                          
Cash Advance for Factoring Receivables, Percentage 95.00%cvti_CashAdvanceForFactoringReceivablesPercentage
/ us-gaap_RangeAxis
= us-gaap_MaximumMember		               95.00%cvti_CashAdvanceForFactoringReceivablesPercentage
/ us-gaap_RangeAxis
= us-gaap_MaximumMember		        
Finite-Lived Intangible Asset, Useful Life                 20 years        
Liability for Claims and Claims Adjustment Expense 20,000,000us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense
/ us-gaap_RangeAxis
= us-gaap_MaximumMember		               20,000,000us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense
/ us-gaap_RangeAxis
= us-gaap_MaximumMember		        
Per Claim Excess Policy Coverage                 40,000,000cvti_PerClaimExcessPolicyCoverage
/ us-gaap_RangeAxis
= us-gaap_MaximumMember		        
Cargo Losses Purchased Coverage Per Claim                 $ 2,000,000cvti_CargoLossesPurchasedCoveragePerClaim
/ us-gaap_RangeAxis
= us-gaap_MaximumMember		        
[1] Includes $7.5 million increase to claims reserves for a 2008 cargo claim.
[2] Includes $2.4 million gain on the sale of a terminal property.