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Note 7 - Investment in Foreign Joint Venture - Summary of Equity Method Investment (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Mar. 31, 2023
Jun. 30, 2022
Mar. 31, 2022
Jun. 30, 2023
Jun. 30, 2022
Dec. 31, 2022
Dec. 31, 2021
Total current assets $ 13,982       $ 13,982   $ 32,217  
Total assets 81,678       81,678   96,580  
Total liabilities 22,150       22,150   36,713  
Total joint ventures’ equity 59,528 $ 61,727 $ 59,049 $ 61,561 59,528 $ 59,049 59,867 $ 61,059
Total liabilities and equity 81,678       81,678   96,580  
Net income (loss) (2,174) $ 1,084 (2,168) $ (406) (1,090) (2,574)    
Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member]                
Total current assets 125,470       125,470   88,536  
Total non-current assets 2,753       2,753   3,016  
Total assets 128,223       128,223   91,552  
Total liabilities 96,222       96,222   58,482  
Total joint ventures’ equity 32,001       32,001   33,070  
Total liabilities and equity 128,223       128,223   $ 91,552  
Revenue 30,369   32,647   51,583 42,726    
Gross Profit 3,483   3,696   5,886 5,305    
Net income (loss) $ 1,772   $ 1,820   $ 2,673 $ 2,143