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Document and Entity Information - shares
9 Months Ended
Sep. 30, 2018
Nov. 12, 2018
Document And Entity Information    
Entity Registrant Name CPI AEROSTRUCTURES INC  
Entity Central Index Key 0000889348  
Document Type 10-Q  
Trading Symbol CVU  
Document Period End Date Sep. 30, 2018  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity's Reporting Status Current Yes  
Entity Filer Category Smaller Reporting Company  
Entity Common Stock, Shares Outstanding   11,727,784
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2018