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Note 11 - Notes Payable and Long-term Debt (Details Textual)
$ in Thousands
Jun. 07, 2022
USD ($)
May 24, 2019
USD ($)
Mar. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Jun. 07, 2022
CNY (¥)
May 24, 2019
CNY (¥)
Debt Instrument, Unused Borrowing Capacity, Amount     $ 29,400 $ 22,500    
Cash Collateral for Borrowed Securities     9,000 9,700    
SPD Bank [Member] | Revolving Credit Facility [Member]            
Line of Credit Facility, Maximum Borrowing Capacity     25,370 25,370    
SPD Bank [Member] | Global Technology, Inc. [Member] | Revolving Credit Facility [Member] | The SPD Credit Line [Member]            
Debt Instrument, Term (Year)   5 years        
Line of Credit Facility, Maximum Borrowing Capacity   $ 25,400       ¥ 180,000,000
Long-Term Line of Credit     11,400      
Bank Acceptances Executed     525      
China Zheshang Bank Co., Ltd [Member] | Revolving Credit Facility [Member] | The ¥200M Credit Facility [Member]            
Line of Credit Facility, Maximum Borrowing Capacity     28,190 $ 28,190    
China Zheshang Bank Co., Ltd [Member] | Global Technology, Inc. [Member] | Revolving Credit Facility [Member] | The ¥50M Credit Facility [Member]            
Debt Instrument, Term (Year) 5 years          
China Zheshang Bank Co., Ltd [Member] | Global Technology, Inc. [Member] | Revolving Credit Facility [Member] | The ¥200M Credit Facility [Member]            
Line of Credit Facility, Maximum Borrowing Capacity $ 29,900       ¥ 200,000,000  
Long-Term Line of Credit     12,700      
Bank Acceptances Executed     $ 10,200