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Note 8 - Intangible Assets - Future Estimated Amortization Expense (Details) - USD ($)
$ in Thousands
Apr. 30, 2023
Jan. 31, 2023
Total $ 4,664 $ 4,931
Intangibles Excluding Technology Development Projects Not Yet Completed [Member]    
2024 757  
2025 728  
2026 628  
2027 349  
2028 283  
Thereafter 996  
Total $ 3,741