Leases - Schedule of Future Maturities of Lease Liabilities (Detail) $ in Thousands	Sep. 30, 2019 USD ($)
Operating Leases
2019	$ 644
2020	2,268
2021	1,880
2022	1,503
2023 and thereafter	9,602
Total lease payments	15,897
Less amount of lease payment representing interest	5,441
Total present value of lease payments	10,456
Finance Leases
2019	27
2020	107
2021	44
2022	25
2023 and thereafter	20
Total lease payments	223
Less amount of lease payment representing interest	11
Total present value of lease payments	$ 212