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Note 8 - Major Customers (Details Textual)
 3 Months Ended 12 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Number of Large Customers Contributed to Revenue of Entity 3cvu_NumberOfLargeCustomersContributedToRevenueOfEntity 3cvu_NumberOfLargeCustomersContributedToRevenueOfEntity  
Number of Large Commercial Customers Accounted for Major Share in Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts 4cvu_NumberofLargeCommercialCustomersAccountedForMajorShareInCostsAndEstimatedEarningsInExcessOfBillingsOnUncompletedContracts   4cvu_NumberofLargeCommercialCustomersAccountedForMajorShareInCostsAndEstimatedEarningsInExcessOfBillingsOnUncompletedContracts
Number of Large Customers Included in Accounts Receivable of Entity 3cvu_NumberOfLargeCustomersIncludedInAccountsReceivableOfEntity   3cvu_NumberOfLargeCustomersIncludedInAccountsReceivableOfEntity
Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts [Member] | Customer Concentration Risk [Member] | US Government [Member]      
Concentration Risk, Percentage 1.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= cvu_CostsAndEstimatedEarningsInExcessOfBillingsOnUncompletedContractsMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= cvu_USGovernmentMember		   1.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= cvu_CostsAndEstimatedEarningsInExcessOfBillingsOnUncompletedContractsMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= cvu_USGovernmentMember
Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts [Member] | Customer Concentration Risk [Member] | Customer A [Member]      
Concentration Risk, Percentage 26.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= cvu_CostsAndEstimatedEarningsInExcessOfBillingsOnUncompletedContractsMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= cvu_CustomerAMember		   27.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= cvu_CostsAndEstimatedEarningsInExcessOfBillingsOnUncompletedContractsMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= cvu_CustomerAMember
Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts [Member] | Customer Concentration Risk [Member] | Customer B [Member]      
Concentration Risk, Percentage 23.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= cvu_CostsAndEstimatedEarningsInExcessOfBillingsOnUncompletedContractsMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= cvu_CustomerBMember		   25.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= cvu_CostsAndEstimatedEarningsInExcessOfBillingsOnUncompletedContractsMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= cvu_CustomerBMember
Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts [Member] | Customer Concentration Risk [Member] | Customer C [Member]      
Concentration Risk, Percentage 13.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= cvu_CostsAndEstimatedEarningsInExcessOfBillingsOnUncompletedContractsMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= cvu_CustomerCMember		   13.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= cvu_CostsAndEstimatedEarningsInExcessOfBillingsOnUncompletedContractsMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= cvu_CustomerCMember
Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts [Member] | Customer Concentration Risk [Member] | Customer D [Member]      
Concentration Risk, Percentage 10.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= cvu_CostsAndEstimatedEarningsInExcessOfBillingsOnUncompletedContractsMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= cvu_CustomerDMember		   8.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= cvu_CostsAndEstimatedEarningsInExcessOfBillingsOnUncompletedContractsMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= cvu_CustomerDMember
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | US Government [Member]      
Concentration Risk, Percentage 0.60%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= cvu_USGovernmentMember		 1.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= cvu_USGovernmentMember		  
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Customer A [Member]      
Concentration Risk, Percentage 21.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= cvu_CustomerAMember		 28.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= cvu_CustomerAMember		  
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Customer B [Member]      
Concentration Risk, Percentage 19.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= cvu_CustomerBMember		 24.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= cvu_CustomerBMember		  
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Customer C [Member]      
Concentration Risk, Percentage 15.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= cvu_CustomerCMember		 17.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= cvu_CustomerCMember		  
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer A [Member]      
Concentration Risk, Percentage 27.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= cvu_CustomerAMember		   26.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= cvu_CustomerAMember
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer B [Member]      
Concentration Risk, Percentage 22.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= cvu_CustomerBMember		   21.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= cvu_CustomerBMember
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer C [Member]      
Concentration Risk, Percentage 14.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= cvu_CustomerCMember		   15.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= cvu_CustomerCMember