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Note 2 - Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Contractors [Abstract]      
Costs in Excess of Billings, Noncurrent $ 3,000,000us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedAfterOneYear    
Decrease in Estimated Gross Profits on Contracts Due to Revisions $ 42,568,000cvu_DecreaseInEstimatedGrossProfitsOnContractsDueToRevisions $ 3,700,000cvu_DecreaseInEstimatedGrossProfitsOnContractsDueToRevisions $ 1,300,000cvu_DecreaseInEstimatedGrossProfitsOnContractsDueToRevisions