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Document And Entity Information - USD ($)
$ in Millions
 12 Months Ended
Mar. 25, 2017
Jun. 14, 2017
Sep. 23, 2016
Document and Entity Information [Abstract]      
Document Fiscal Period Focus FY    
Entity Common Stock, Shares Outstanding   7,108,620  
Entity Central Index Key 0000099302    
Current Fiscal Year End Date --03-25    
Entity Filer Category Smaller Reporting Company    
Document Type 10-K    
Entity Registrant Name TRANSCAT INC    
Document Fiscal Year Focus 2017    
Trading Symbol TRNS    
Amendment Flag false    
Document Period End Date Mar. 25, 2017    
Entity Public Float     $ 68.8
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Well-known Seasoned Issuer No