Summary of Significant Accounting Policies - Additional Information (Details)			12 Months Ended
	Oct. 14, 2021	Oct. 08, 2021 USD ($)	Dec. 31, 2021 USD ($) Customer Segment	Dec. 31, 2020 USD ($) Customer	Oct. 26, 2021 USD ($)
Financing Receivable Impaired [Line Items]
Reverse stock split	1-for-6.046
Reverse stock split ratio	0.165
Number of reportable segment | Segment			1
Number of operating segment | Segment			1
Number of customer accounted for accounts receivable or revenue | Customer			0	0
Restricted cash			$ 7,807,000	$ 7,807,000
Allowance for doubtful accounts			500,000	400,000
Provision for bad debts				300,000
Provision for excess or obsolete inventory			0	0
Impairment of long-lived assets			0	0
Payment of success fee			400,000
Revenues			52,103,000	37,768,000
Deferred revenue			100,000	200,000
Warranty
Financing Receivable Impaired [Line Items]
Revenues			100,000
CIBC Agreement
Financing Receivable Impaired [Line Items]
Payment of success fee		$ 400,000
Success fee derivative liability					$ 400,000
Maximum
Financing Receivable Impaired [Line Items]
Provision for bad debts			$ 200,000
Property and equipment, useful life			7 years
Costs to perform warranty obligations			$ 100,000	100,000
Maximum | Warranty
Financing Receivable Impaired [Line Items]
Revenues				$ 100,000
Minimum
Financing Receivable Impaired [Line Items]
Property and equipment, useful life			2 years