Leases - Additional Information (Details)	1 Months Ended		3 Months Ended	9 Months Ended
	Mar. 31, 2021 ft²	Feb. 28, 2021	Sep. 30, 2021 USD ($)	Sep. 30, 2021 USD ($)
Lessee Lease Description [Line Items]
Operating leases term of expiration				2028-03
Lessee operating lease extended lease term expiration date		Jan. 31, 2023
Lease income | $			$ 79,000	$ 321,000
Building | Minimum
Lessee Lease Description [Line Items]
Remaining terms including renewal options				14 months
Building | Maximum
Lessee Lease Description [Line Items]
Remaining terms including renewal options				47 months
Houston, Texas
Lessee Lease Description [Line Items]
Area of lease | ft²	12,000
Lease, expiration month and year	2023-11