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Leases - Schedule of Future Minimum Lease Payments for Operating and Finance Obligation (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Operating Leases
2021	$ 405
2022	223
2023	145
2024	150
2025	25
Thereafter	0
Total lease payments	948
Less: Interest	(96)
Present value of lease liabilities	852
Finance Leases
2021	648
2022	0
2023	0
2024	0
2025	0
Thereafter	0
Total lease payments	648
Less: Interest	0
Present value of lease liabilities	648
Lease liabilities [Abstract
2021	1,053
2022	223
2023	145
2024	150
2025	25
Thereafter	0
Total lease payments	1,596
Less: Interest	(96)
Total lease liabilities	$ 1,500	$ 5,102

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