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Note 4 - Accounts Receivable (Tables) | 3 Months Ended
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Mar. 31, 2019
Notes Tables |
Schedule of Receivables with Imputed Interest [Table Text Block] |
|  | March 31, |  |  | December 31, |
|  | 2019 |  |  | 2018 |
Trade accounts |  | $ | 3,926,977 |  |  | $ | 3,621,695 |
Premiums |  |  | 662,725 |  |  |  | 890,974 |
Anticipated salvage and subrogation |  |  | - |  |  |  | 2,340 |
Allowance for doubtful accounts |  |  | (81,778 | ) |  |  | (50,565 | )
Total Accounts Receivable, net |  | $ | 4,507,924 |  |  | $ | 4,464,444 |

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