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Leases - Components of Lease Expense (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Leases [Abstract]    
Operating lease expense [1] $ 839 $ 670
Operating lease income [2] 845 124
Operating lease, right-of-use asset 3,543  
Operating lease, liability $ 3,573  
Weighted-average remaining lease term (in years) 6 years 9 months 3 days  
Weighted-average discount rate 3.16%  
Operating cash flows from operating leases $ 764 $ 558
[1] Includes short-term lease costs. For the years ended December 31, 2019 and 2018, short-term lease costs were nominal in amount.
[2] Operating lease income includes rental income from owned properties.