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Goodwill and Acquired Intangible Assets (Schedule of Changes in Goodwill) (Details) - USD ($)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Goodwill [Roll Forward]      
Beginning balance $ 24,723,000    
Impairment (602,000) $ 0 $ 0
Effect of foreign currency (29,000)    
Ending balance $ 24,092,000 $ 24,723,000