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Bank Financing Arrangements (Details Narrative)
3 Months Ended 6 Months Ended
Jun. 30, 2020
USD ($)
Jun. 30, 2020
USD ($)
Term Loan for Stock Repurchase    
Amount repaid   $ 250,000
Interest expense $ 1,896 5,922
Accrued interest payable 9,236 9,236
Domestic Line of Credit    
Amount borrowed   3,865,000
Amount repaid   4,619,915
Interest expense 3,148 16,832
Accrued interest payable 62 62
Remaining borrowing capacity 549,856 549,856
Foreign Line of Credit    
Amount borrowed   765,000
Amount repaid   972,534
Interest expense 635 2,552
Remaining borrowing capacity $ 137,426 $ 137,426