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Note 5 - Investment in Foreign Joint Venture - Summary of Equity Method Investment (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Dec. 31, 2023
Total current assets $ 15,433   $ 17,473  
Total assets 83,060   85,584  
Total liabilities 17,149   18,576  
Total joint ventures’ equity 65,911 $ 63,189 67,008 $ 61,812
Total liabilities and equity 83,060   85,584  
Net income (1,598) 1,469    
Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member]        
Total current assets 116,260   124,253  
Total non-current assets 8,975   9,496  
Total assets 125,235   133,749  
Total liabilities 91,943   101,562  
Total joint ventures’ equity 33,292   32,187  
Total liabilities and equity 125,235   $ 133,749  
Revenues 21,710 17,239    
Gross profit 2,105 2,630    
Net income $ 961 $ 537