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Lease - Schedule of Operating Lease Liability (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Leases [Abstract]    
Operating lease right-of-use assets $ 1,092
Operating lease liabilities $ 1,095
Weighted-average remaining lease term 8 years 7 months 6 days  
Weighted-average discount rate 2.10%