Intangible Assets, net (Schedule of Future Amortization Expense) (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Intangible Assets, net    
2022 $ 379  
2023 379  
2024 379  
2025 379  
2026 379  
Thereafter 2,366  
Total $ 4,261 $ 4,640