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Loans Payable – Banks (Details Narrative) - USD ($)
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Debt Instrument [Line Items]    
Borrowings outstanding lines of credit $ 4,400,000 $ 0
Weighted average interest rate on short-term borrowings 4.50% 0.00%
Domestic Subsidiaries [Member]    
Debt Instrument [Line Items]    
Line of credit, maximum borrowing amount $ 25,000,000  
Domestic Subsidiaries [Member] | London Interbank Offered Rate [Member]    
Debt Instrument [Line Items]    
Basis spread over variable interest rate 2.00%  
Variable rate 5.30%  
Line of credit facility, maturity date Dec. 13, 2024  
Foreign Subsidiaries [Member]    
Debt Instrument [Line Items]    
Line of credit, maximum borrowing amount $ 8,000,000  
Foreign Subsidiaries [Member] | Euro Interbank Offered Rate [Member]    
Debt Instrument [Line Items]    
Variable rate 3.96%  
Foreign Subsidiaries [Member] | Euro Interbank Offered Rate [Member] | Minimum [Member]    
Debt Instrument [Line Items]    
Basis spread over variable interest rate 0.60%  
Foreign Subsidiaries [Member] | Euro Interbank Offered Rate [Member] | Maximum [Member]    
Debt Instrument [Line Items]    
Basis spread over variable interest rate 0.90%