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Debt - Schedule of Short Term Debt (10-K) (Details) - USD ($) | Dec. 31, 2019 | Dec. 31, 2018
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Total short-term debt | $ 4,881,061 | $ 5,207,131
Notes Outstanding Under Revolving Credit Facility [Member] |  |
Total short-term debt | 2,881,061 | 3,950,681
Convertible Debt [Member] |  |
Total short-term debt | 1,000,000 | 1,250,000
Debentures [Member] |  |
Total short-term debt | 1,000,000 |
Term Loan - Current Maturities [Member] |  |
Total short-term debt |  | $ 6,450

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