Summary of Significant Accounting Policies - Additional Information (Details)	1 Months Ended	12 Months Ended
	Sep. 30, 2019 USD ($)	Dec. 31, 2020 USD ($) Segment Customer	Dec. 31, 2019 USD ($) Customer	Jan. 01, 2019 USD ($)	Dec. 31, 2018 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Number of operating segments | Segment		1
Number of reportable segments | Segment		1
Long-lived assets in United States		100.00%	98.00%
Restricted cash		$ 0	$ 100,000		$ 100,000
Restricted Cash, Asset, Statement of Financial Position [Extensible List]		us-gaap:OtherAssetsNoncurrent	us-gaap:OtherAssetsNoncurrent		us-gaap:OtherAssetsNoncurrent
Allowance for credit losses		$ 37,000	$ 0
Acquired intangible assets weighted average amortization period		15 years
Impairment of intangible assets		$ 0	0
Accounts receivables payment terms		30 days
Number of customers | Customer		23
Operating lease right-of-use assets		$ 3,668,000	853,000
Long-term operating lease liabilities		3,314,000	333,000
Accumulated deficit		(57,993,000)	$ (38,185,000)
Lease revenue		$ 335,000
Research and Development
Summary Of Significant Accounting Policies [Line Items]
Acquired certain intellectual property from a third-party for cash	$ 3,500,000
Customer Concentration Risk | Revenue
Summary Of Significant Accounting Policies [Line Items]
Number of customers | Customer		3	2
Customer Concentration Risk | Revenue | Customer One
Summary Of Significant Accounting Policies [Line Items]
Concentration risk, percentage		12.00%	26.00%
Customer Concentration Risk | Revenue | Customer Two
Summary Of Significant Accounting Policies [Line Items]
Concentration risk, percentage		12.00%	11.00%
Customer Concentration Risk | Revenue | Customer Three
Summary Of Significant Accounting Policies [Line Items]
Concentration risk, percentage		12.00%
Customer Concentration Risk | Accounts Receivable
Summary Of Significant Accounting Policies [Line Items]
Number of customers | Customer		2	1
Customer Concentration Risk | Accounts Receivable | Customer One
Summary Of Significant Accounting Policies [Line Items]
Concentration risk, percentage		11.00%	25.00%
Customer Concentration Risk | Accounts Receivable | Customer Two
Summary Of Significant Accounting Policies [Line Items]
Concentration risk, percentage		10.00%
Shipping and Handling
Summary Of Significant Accounting Policies [Line Items]
Cost of revenue		$ 90,000	$ 100,000
Accounting Standards Update 2016-02
Summary Of Significant Accounting Policies [Line Items]
Change in accounting principle, accounting standards update, adopted [true false]		true		true
Change in accounting principle, accounting standards update, adoption date		Jan. 01, 2018
Operating lease right-of-use assets				$ 1,390,000
Long-term operating lease liabilities				$ 1,424,000
Accounting Standards Update 2016-13
Summary Of Significant Accounting Policies [Line Items]
Change in accounting principle, accounting standards update, adopted [true false]		true
Change in accounting principle, accounting standards update, adoption date		Jan. 01, 2020
Change in accounting principle, accounting standards update, immaterial effect [true false]		false
Accumulated deficit		$ 34,000
Accounting Standards Update 2018-15
Summary Of Significant Accounting Policies [Line Items]
Change in accounting principle, accounting standards update, adopted [true false]		true
Change in accounting principle, accounting standards update, adoption date		Jan. 01, 2020
Change in accounting principle, accounting standards update, immaterial effect [true false]		true
Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Operating leases, estimated useful life		5 years
Monthly rental fee period		1 month
Maximum
Summary Of Significant Accounting Policies [Line Items]
Operating leases, estimated useful life		10 years
Monthly rental fee period		3 months
Maximum | Accounting Standards Update 2016-02
Summary Of Significant Accounting Policies [Line Items]
Operating leases, estimated useful life		12 months
Acquired Product Rights and Technology | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Acquired intangible assets weighted average amortization period		15 years
Acquired Product Rights and Technology | Maximum
Summary Of Significant Accounting Policies [Line Items]
Acquired intangible assets weighted average amortization period		20 years
Customer Relationships
Summary Of Significant Accounting Policies [Line Items]
Acquired intangible assets weighted average amortization period		10 years
Customer Relationships | Maximum
Summary Of Significant Accounting Policies [Line Items]
Intangible assets estimated useful life		20 years