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Operating Leases - Right-of-Use Assets and Lease Liability Obligations - Schedule of Right-of-use Assets and Lease Liabilities (Detail)
$ in Thousands
Jun. 30, 2019
USD ($)
Lessee Disclosure [Abstract]  
Right-of-use assets $ 730
Lease liability, current 288
Lease liability, net of current portion 513
Total lease liability obligations $ 801
Weighted-average remaining lease term 2 years 6 months 29 days
Weighted-average discount rate 6.00%