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Intangible Assets (Schedule of net Intangible Assets) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]      
Original cost $ 5,542 $ 9,714  
Accumulated amortization 3,289 3,004  
Intangible assets, Net 2,253 6,710  
Amortization expense 285 207 $ 428
Estimates amortization of capitalized software development costs 501 451 303
Impairment charge 5,264 0 $ 0
Capitalization of software development costs [Member]      
Finite-Lived Intangible Assets [Line Items]      
Original cost 4,909 9,081  
Accumulated amortization 2,695 2,431  
Intangible assets, Net $ 2,214 6,650  
Useful life 8 years    
Licenses [Member]      
Finite-Lived Intangible Assets [Line Items]      
Original cost $ 633 633  
Accumulated amortization 594 573  
Intangible assets, Net $ 39 $ 60  
Useful life 3 years