Document And Entity Information - USD ($) $ in Millions	12 Months Ended
	Mar. 27, 2021	Jun. 03, 2021	Sep. 25, 2020
Document and Entity Information [Abstract]
Entity Central Index Key	0000099302
Current Fiscal Year End Date	--03-27
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Amendment Flag	false
Document Type	10-K
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Mar. 27, 2021
Entity File Number	000-03905
Entity Registrant Name	TRANSCAT, INC.
Entity Incorporation State Country Code	OH
Entity Tax Identification Number	16-0874418
Entity Address, Address Line One	35 Vantage Point Drive
Entity Address, City or Town	Rochester
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	14624
City Area Code	585
Local Phone Number	352-7777
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Auditor Attestation Flag	true
Entity Shell Company	false
Title of 12(b) Security	Common Stock, $0.50 par value
Trading Symbol	TRNS
Name of Exchange on which Security is Registered	NASDAQ
Entity Common Stock, Shares Outstanding		7,468,991
Entity Public Float			$ 199.6
Documents Incorporated By Reference Text Block	Portions of the registrant's definitive proxy statement relating to the Annual Meeting of Shareholders to be held on September 8, 2021 have been incorporated by reference into Part III, Items 10, 11, 12, 13 and 14 of this report.