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Bank Financing Arrangements (Details Narrative) - USD ($) |  | 12 Months Ended
--- | --- | ---
Jan. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018
Accrued interest payable |  | $ 14,466 | $ 13,546
Domestic Line of Credit |  |  |
Aggregate maximum advance amount | $ 2,000,000 |  |
Borrowing capacity description | 80% of qualified receivables |  |
Debt reference rate | U.S. Prime Rate |  |
Basis point added to reference rate of debt | 0.75% |  |
Line of credit expiration date | Jan. 31, 2020 |  |
Foreign Line of Credit |  |  |
Aggregate maximum advance amount | $ 500,000 |  |
Borrowing capacity description | 80% of qualified receivables |  |
Debt reference rate | U.S. Prime Rate |  |
Basis point added to reference rate of debt | 0.75% |  |
Line of credit expiration date | Jan. 31, 2020 |  |
Term Loan for Stock Repurchase |  |  |
Aggregate maximum advance amount | $ 4,000,000 |  |
Borrowing capacity description | Payable over 48 months |  |
Debt reference rate | U.S. Prime Rate |  |
Basis point added to reference rate of debt | 1.75% |  |
Amount outstanding |  | 333,333 |
Amount repaid |  | 500,000 |
Interest expense |  | 44,541 | 94,594
Line of Credit Facilities |  |  |
Amount outstanding |  | 1,412,449 |
Amount borrowed |  | 17,423,000 |
Amount repaid |  | 17,327,329 |
Interest expense |  | 55,571 | $ 37,201
Remaining borrowing capacity |  | $ 426,547 |

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