Leases - Schedule of Future Principal Minimum Lease Payments (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Operating Leases
2022	$ 1,166
2023	935
2024	610
2025	424
2026	396
And subsequent	550
Total undiscounted lease payments	4,081
Less interest	(433)
Total liabilities	3,648
Less current maturities	(1,006)	$ (1,167)
Non-current lease liabilities	2,642	2,901
Capital Leases
2022	891
2023	918
2024	945
2025	974
2026	1,003
And subsequent	1,919
Total undiscounted lease payments	6,650
Less interest	(2,256)
Total liabilities	4,394
Less current maturities	(362)	(344)
Non-current lease liabilities	$ 4,032	$ 4,221