Debt - Runway Growth Credit Fund (Details)				1 Months Ended		3 Months Ended	12 Months Ended
	Dec. 23, 2020 USD ($)	Jul. 23, 2020	Dec. 19, 2019 USD ($)	Jul. 31, 2020 USD ($)	May 31, 2020 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Debt Instrument [Line Items]
Amount borrowed			$ 3,000,000
Proceeds from Issuance of Debt			$ 3,000,000				$ 66,190,000	$ 31,300,000
Long-term Debt						$ 47,983,000	47,983,000	49,461,000
Variable interest rate		1.00%
Senior Secured Term Loans
Debt Instrument [Line Items]
Amount borrowed				$ 47,000,000
Long-term Debt				37,645	$ 37,500			40,000,000
Interest expenses				749,000
Repayment of loan				37,500,000	$ 2,500
Debt Instrument, Final Payment Fees								$ 500,000
Senior Secured Term Loans | Three-month LIBOR
Debt Instrument [Line Items]
Warrants term								3 months
Senior Secured Term Loans | Runway Growth Credit Fund, Inc. [Member]
Debt Instrument [Line Items]
Amount borrowed				40,000,000
Loan and Security Agreement , Runway Loan [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Debt				$ 7,000,000
Long-term Debt						$ 39,049,000	39,049,000
Interest expenses	$ 17,000
Repayment of loan	7,057,000
Basis spread on interest rate				9.05%
Paid in kind interest rate				2
Calculated interest rate				11.05%
Final payment fee	$ 391,000
Loan default				5.00%
Debt Instrument, Final Payment Fees				$ 1,645,000
Final payment fee				3.50%
Financial covenants, Minimum cash level				$ 3,000,000
Financial covenants, Minimum revenue				$ 15,356,000
Financial covenants, projected revenue percentage						80.00%
Warrants grant date fair value						$ 1,216,000	$ 1,216,000
Paid In Kind Interest Rate				2
Loan and Security Agreement , Runway Loan [Member] | Loans Repaid Prior To First Anniversary [Member]
Debt Instrument [Line Items]
Repayment fees percentage				2.00%
Loan and Security Agreement , Runway Loan [Member] | Loans Repaid Prior to Second Anniversary [Member]
Debt Instrument [Line Items]
Repayment fees percentage				1.50%
Loan and Security Agreement , Runway Loan [Member] | Loans Repaid Prior to Third Anniversary [Member]
Debt Instrument [Line Items]
Repayment fees percentage				1.00%
Loan and Security Agreement , Runway Loan [Member] | Loans Repaid Prior to Fourth Anniversary [Member]
Debt Instrument [Line Items]
Repayment fees percentage				0.50%
Loan and Security Agreement , Runway Loan [Member] | Three-month LIBOR
Debt Instrument [Line Items]
Variable interest rate				0.55%