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Leases - Information Related to Leases (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Leases Details [Abstract]    
Operating lease cost $ 336 $ 307
Operating lease - cash flow $ 294 $ 271
Weighted-average remaining lease term 4 years 4 years
Weighted-average discount rate 5.00% 5.00%