Debt - OrbiMed Term Loan (related party) (Details) $ in Thousands		1 Months Ended	12 Months Ended
	May 26, 2022 USD ($)	Nov. 30, 2018 USD ($) tranche	Dec. 31, 2022 USD ($)
Long term Debt
Loss on extinguishment of debt			$ (1,228)
OrbiMed Term Loans (related party)
Long term Debt
Debt amount		$ 35,000
Number of Tranches | tranche		2
Interest Rate (as a percent)	7.75%
Variable Interest Rate (as a percent)	2.00%
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]	tela:LondonInterBankOfferedRateMember
End of Term Charge	$ 3,000
Loss on extinguishment of debt			(1,200)
Interest expenses			1,500
Amortization of Debt Issuance Costs			$ 300
OrbiMed Term Loans - Tranche One
Long term Debt
Debt amount		$ 30,000
OrbiMed Term Loans - Tranche Two
Long term Debt
Debt amount		$ 5,000