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Cash and Restricted Cash (Tables) | 12 Months Ended
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Dec. 31, 2020
Cash and Cash Equivalents [Abstract] |
Schedule of cash and restricted cash |
|  | December 31, |
|  | 2020 |  |  | 2019 |  |  | 2018 |
Cash |  | $ | 3,426,467 |  |  | $ | 6,388,978 |  |  | $ | 3,116,209 |
Restricted Cash |  |  | 1,367,630 |  |  |  | 2,192,201 |  |  |  | 3,991,949 |
Total cash and restricted cash presented in the consolidated statement of cash flows |  | $ | 4,794,097 |  |  | $ | 8,581,179 |  |  | $ | 7,108,158 |

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