Property and Equipment, Net - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Property Plant And Equipment [Line Items]
Depreciation expense	$ 929,000	$ 632,000
Property and equipment, gross	7,950,000	8,426,000
Impairments of property and equipment	1,534,000	0
Write-down of intangible assets	1,400,000	0
Additional fixed assets impairment	100,000
Construction in Progress [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 267,000	$ 239,000