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Note 4 - Deferred Costs and Intangible Assets - Future Amortization Expense (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
2023 (Remainder) $ 585  
2024 571  
2025 560  
2026 544  
2027 532  
Thereafter 3,740  
Total deferred costs and intangible assets, net $ 6,532 $ 6,624