Property and Equipment, Net - Summary of Property and Equipment for Fixed Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Property Plant And Equipment [Line Items]
Total:	$ 17,326	$ 16,079
Less: accumulated depreciation	(11,236)	(10,669)
Property and Equipment, net of capital leased assets	6,090	5,410
Computer Equipment
Property Plant And Equipment [Line Items]
Total:	1,865	1,279
Survey Equipment
Property Plant And Equipment [Line Items]
Total:	4,679	4,625
Vehicles
Property Plant And Equipment [Line Items]
Total:	854	763
Furniture and Fixtures
Property Plant And Equipment [Line Items]
Total:	2,017	1,675
Leasehold Improvements
Property Plant And Equipment [Line Items]
Total:	7,117	6,886
Software
Property Plant And Equipment [Line Items]
Total:	297	332
Fixed Assets Pending Lease Financing
Property Plant And Equipment [Line Items]
Total:	$ 497	$ 519