Leases - Schedule of Future Principal Minimum Lease Payments (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Operating Leases
2020	$ 999	$ 1,950
2021	555	1,169
2022	338	1,169
2023	194	408
2024	80	408
And subsequent	319	1,803
Total undiscounted lease payments	2,485	6,907
Less interest	(204)
Total liabilities	2,281
Less current maturities	(920)
Non-current lease liabilities	1,361
Capital Leases
2020	1,066	1,043
2021	913	1,066
2022	828	896
2023	932	904
2024	960	932
And subsequent	3,411	4,371
Total undiscounted lease payments	8,110	9,212
Less interest	(3,050)
Total liabilities	5,060
Less current maturities	(476)	(422)
Non-current lease liabilities	$ 4,584	$ 5,061