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Accounts Receivable and Significant Concentrations (Tables) | 12 Months Ended
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Dec. 31, 2021
Accounts Receivable and Significant Concentrations |
Schedule of accounts receivable |
|  | DECEMBER 31, |  |  | DECEMBER 31, |
|  | 2021 |  |  | 2020 |
U.S. Federal, State and Local Government (1) |  | $ | 11,010,794 |  |  | $ | 34,097,906 |
Commercial (2) |  |  | 1,588,778 |  |  |  | 1,898,924 |
Gross accounts receivable |  |  | 12,599,572 |  |  |  | 35,996,830 |
Less: allowances for doubtful |  |  |  |  |  |  |  |
accounts (3) |  |  | 62,988 |  |  |  | 114,169 |
Accounts receivable, net |  | $ | 12,536,584 |  |  | $ | 35,882,661 |
Schedule of concentration of risk |
|  | YEARS ENDED
|  | DECEMBER 31,
Customer Type |  | 2021 |  | 2020
U.S. Federal Government (1) |  | 83.7% |  | 91.9%
U.S. State & Local and Foreign Governments |  | 0.4% |  | 0.1%
Commercial |  | 15.9% |  | 7.9%

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