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Other Current Liabilities - Summary of Other Current Liabilities (Detail) - USD ($) | Dec. 31, 2020 | Dec. 31, 2019
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Other Liabilities Disclosure [Abstract] |  |
Accrued payroll expenses | $ 5,677,375 | $ 8,126,091
Deferred revenue | 3,732,890 | 3,639,077
Income taxes payable | 3,481,710 | 4,483,800
Trade sales payable | 892,543 | 2,180,783
Franchise fee payable |  | 2,500,000
Dividends payable |  | 1,396,621
Other accrued expenses | 7,203,923 | 5,737,995
Other current liabilities | $ 20,988,441 | $ 28,064,367

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