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Leases (Schedule of Lease Cost) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Rental expenses        
Lessee, Lease, Description [Line Items]        
Operating lease costs $ 575 $ 422 $ 1,442 $ 1,266
Income from discontinued operations        
Lessee, Lease, Description [Line Items]        
Operating lease costs 0 25 0 414
General and administrative expenses        
Lessee, Lease, Description [Line Items]        
Operating lease costs 182 297 559 825
Depreciation and amortization        
Lessee, Lease, Description [Line Items]        
Finance lease costs 5 5 15 14
Interest and other expense, net        
Lessee, Lease, Description [Line Items]        
Interest on lease liability $ 35 $ 35 $ 105 $ 102