Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Mar. 16, 2023	Jun. 30, 2022
Document and Entity Information
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2022
Document Transition Report	false
Entity File Number	001-39130
Entity Registrant Name	TELA Bio, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	45-5320061
Entity Address, Address Line One	1 Great Valley Parkway, Suite 24
Entity Address, City or Town	Malvern
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	19355
City Area Code	484
Local Phone Number	320-2930
Title of 12(b) Security	Common Stock, $0.001 par value per share
Trading Symbol	TELA
Security Exchange Name	NASDAQ
Entity Well Known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
ICFR Auditor Attestation Flag	false
Entity Shell Company	false
Entity Public Float			$ 54.4
Entity Common Stock, Shares Outstanding		19,216,821
Entity Central Index Key	0001561921
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Amendment Flag	false
Auditor Name	KPMG LLP
Auditor Firm ID	185
Auditor Location	Philadelphia, PA