Loan Facility (Details) $ in Millions	1 Months Ended				3 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2021 USD ($)	Jan. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	Sep. 30, 2019 USD ($) installment	Mar. 31, 2021 USD ($)	Jun. 30, 2021 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2020
Loan Facility
Line of Credit Facility [Line Items]
Trailing twelve month revenue target							$ 200.0
Fee on first installment drawn	$ 1.0						1.0
Fee if first two installments drawn	2.0						2.0
Fee if first three installments drawn	2.4						2.4
Fee if all four installments are drawn	$ 3.0						$ 3.0
Loan Facility | Line of Credit
Line of Credit Facility [Line Items]
Interest only period		36 months						24 months
Loan Facility | Line of Credit | Line of Credit
Line of Credit Facility [Line Items]
Loan facility, maximum borrowing capacity				$ 75.0
Number of installments | installment				4
Facility interest rate at period end (percent)	9.37%						9.37%
Facility term (in years)				60 months
Interest only period		36 months		24 months
Principal and interest period (in months)		24 months		36 months
Covenant compliance, IPO capital raised in threshold amount	$ 50.0
Covenant compliance, IPO capital raised in threshold amount achieved, extended interest only period (in months)	12 months
Covenant compliance, IPO capital raised in threshold amount achieved, extended principal and interest only period (in months)	12 months
Covenant compliance, revenue forecast for commensurate period, percent	70.00%						70.00%
Covenant compliance, revenue forecast amount, first two installments only	$ 15.0						$ 15.0
Covenant compliance, revenue forecast amount, first three installments only	20.0						20.0
Covenant compliance, revenue forecast amount, all installments	$ 25.0						$ 25.0
Final payment fee, percentage	6.00%						6.00%
Commitment fee percentage							0.25%
Early repayment fee first twelve month, percent				3.00%
Early repayment fee second twelve month period, percent				2.00%
Early repayment fee, twenty four months thereafter, percent				1.00%
Trailing twelve month revenue target							$ 200.0
Fee on first installment drawn	$ 1.0						1.0
Fee if first two installments drawn	2.0						2.0
Fee if first three installments drawn	2.4						2.4
Fee if all four installments are drawn	3.0						$ 3.0
Loan Facility | Line of Credit | Base Rate | Line of Credit
Line of Credit Facility [Line Items]
Facility base interest rate (percent)							7.17%
Loan Facility | Line of Credit | London Interbank Offered Rate (LIBOR) | Line of Credit
Line of Credit Facility [Line Items]
Facility interest, spread on base rate							2.20%
Loan Facility, Tranche One | Line of Credit | Line of Credit
Line of Credit Facility [Line Items]
Proceeds from long-term lines of credit	25.0
Loan Facility, Tranche Two | Line of Credit | Line of Credit
Line of Credit Facility [Line Items]
Proceeds from long-term lines of credit			$ 25.0
Loan Facility, Tranche Three | Line of Credit | Line of Credit
Line of Credit Facility [Line Items]
Current borrowing amount	10.0						$ 10.0
Trailing six months revenue target		$ 6.4			$ 20.0
Loan Facility, Tranche Four | Line of Credit | Line of Credit
Line of Credit Facility [Line Items]
Current borrowing amount	$ 15.0						$ 15.0
Trailing six months revenue target						$ 25.0
Extended interest only period (in months)							12 months
Extended principal and interest period (in months)							24 months