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Leases - Schedule Includes Other Information About Leases (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Leases [Abstract]        
Operating cash flows from operating leases $ 356 $ 259 $ 627 $ 513
Operating cash flows from finance leases 1 1 2 4
Finance cash flows from finance leases $ 18 $ 30 $ 39 $ 48
Weighted Average Remaining Lease Term [Abstract]        
Operating leases 4 years 7 months 6 days   4 years 7 months 6 days  
Finance leases 1 year 6 months   1 year 6 months  
Weighted Average Discount Rate [Abstract]        
Operating leases 5.78%   5.78%  
Finance leases 6.25%   6.25%