Significant Accounting Policies - Narrative (Details)		12 Months Ended
	Oct. 01, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Jan. 12, 2021	Jan. 01, 2021 USD ($)	Oct. 18, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Recapitalization conversion ratio						7.2282662		7.2282662
Redemption value			$ 8,670,000	$ 8,682,000	$ 9,298,000
Other current assets		$ 1,164,000	4,108,000
Net loss		61,200,000	17,027,000	22,803,000
Cash in operations		9,560,000	217,000	7,275,000
Cash and cash equivalents		187,672,000	14,642,000
Marketable securities		45,117,000	0
Accumulated deficit		206,077,000	$ 144,877,000
Accounting Standards Update [Extensible Enumeration]			Accounting Standards Update 2016-02 [Member]		Accounting Standards Update 2014-09 [Member]
Operating lease right-of-use assets		28,623,000
Present value of lease payments		35,686,000
Deferred rent			$ 7,400,000
Lease incentive			7,400,000
Allowance for credit losses		300,000	200,000
Marketable securities, unrealized gain (loss)		0
Goodwill, impairment loss	$ 0	0	0	0
Accumulated goodwill impairment losses		0
Impairment charges		0	0	0
Contract asset		0	0
Capitalized computer software		400,000	600,000
Capitalized computer software, amortization		300,000	300,000
Inventory		800,000	700,000
Advertising expense		$ 500,000	0	$ 0
Capitalized Software Development
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Useful Life		4 years
Revision of Prior Period, Reclassification, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Restricted cash			3,300,000
Other current assets			$ 3,300,000
Cumulative Effect, Period of Adoption, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets							$ 29,300,000
Present value of lease payments							$ 36,700,000
Minimum | Subscription Agreement
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue from contract with customer, term		1 year
Minimum | Professional Services
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue from contract with customer, term		4 years
Minimum | Commissions
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Amortization period		4 years
Minimum | Deferred Implementation and Other Costs
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Amortization period		4 years
Maximum | Subscription Agreement
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue from contract with customer, term		3 years
Maximum | Professional Services
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue from contract with customer, term		5 years
Maximum | Commissions
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Payment period		12 months
Amortization period		5 years
Maximum | Deferred Implementation and Other Costs
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Amortization period		5 years