Summary of Significant Accounting Policies - Additional Information (Details)	12 Months Ended
	Dec. 31, 2021 USD ($) Segment	Dec. 31, 2020 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Number of operating segments | Segment	1
Restricted cash	$ 175,000	$ 88,000
Deferred offering costs	0	0
Off-balance sheet risk	0	0
Depreciation expense	99,000	97,000
Right of use assets - operating leases	525,000
Operating lease liability, current	246,000
Operating lease liability, non-current	406,000
ASU 2016-02
Summary Of Significant Accounting Policies [Line Items]
Right of use assets - operating leases	700,000
Operating lease liability, current	300,000
Operating lease liability, non-current	600,000
Construction-in-process
Summary Of Significant Accounting Policies [Line Items]
Depreciation expense	0
Maximum
Summary Of Significant Accounting Policies [Line Items]
Restricted cash	$ 200,000	$ 100,000