Annual report pursuant to Section 13 and 15(d)

Leases - Lease Cost (Details)

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Leases - Lease Cost (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Leases [Abstract]    
Operating lease costs $ 1,483 $ 1,509
Variable lease costs 739 708
Total lease cost $ 2,222 $ 2,217