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OTHER ACCRUED LIABILITIES (Tables) | 12 Months Ended
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Dec. 31, 2020
OTHER ACCRUED LIABILITIES |
Schedule of other accrued liabilities |
|  | December 31,
|  | 2020 |  | 2019
Prepayments from customers |  | $ | 1,686,868 |  | $ | 998,601
Accrued professional fees |  |  | 331,204 |  |  | 263,757
Current portion – preferred stock repurchase |  |  | 1,092,282 |  |  | —
Other accrued expenses |  |  | 288,550 |  |  | 124,791
Total |  | $ | 3,398,904 |  | $ | 1,387,149

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