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Loans Payable – Banks (Details Narrative)
$ in Millions
12 Months Ended
Dec. 31, 2022
USD ($)
Domestic Subsidiaries [Member]  
Debt Instrument [Line Items]  
Line of credit, maximum borrowing amount $ 20
Domestic Subsidiaries [Member] | London Interbank Offered Rate [Member]  
Debt Instrument [Line Items]  
Basis spread over variable interest rate 2.00%
Variable rate 4.30%
Line of Credit Facility, Expiration Date Dec. 15, 2023
Foreign Subsidiaries [Member]  
Debt Instrument [Line Items]  
Line of credit, maximum borrowing amount $ 20
Foreign Subsidiaries [Member] | Euro Interbank Offered Rate [Member]  
Debt Instrument [Line Items]  
Variable rate 0.576%
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%