Leases - Schedule of Supplemental Balance Sheet Information Related to Operating Leases (Detail) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Right-of-use lease asset, net	$ 1,499	$ 1,828
Operating lease	421	702
Operating lease, long-term	1,168	$ 1,256
Total operating lease liabilities	$ 1,589
Weighted average remaining lease term	6 years 2 months 12 days
Weighted average discount rate	8.20%