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Leases - Schedule of Supplemental Cash Flow Information Related to Leases (Detail)
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
Cash paid for amounts included in the measurement of lease liabilities:  
Operating cash flows from operating leases $ 219
Operating cash flows from finance leases 1
Financing cash flows from finance leases 2
Right-of use assets obtained in exchange for lease obligations (noncash):  
Operating leases 484
Finance leases $ 27