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Significant Accounting Policies (Narrative) (Details) | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2020 USD ($) | Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Sep. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Dec. 31, 2020 USD ($) segment | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Aug. 31, 2020 USD ($) | Jan. 01, 2019 USD ($)
Segment Reporting [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of operating segments | segment |  |  |  |  |  |  |  |  | 1 |  |  |  |
Net revenues from customers outside the United States | $ 10,261,534 | $ 9,250,689 | $ 9,598,177 | $ 8,330,734 | $ 9,305,553 | $ 6,935,439 | $ 9,417,443 | $ 8,729,860 | $ 37,441,134 | $ 34,388,295 | $ 29,344,894 |  |
Operating lease right-of-use assets | 2,028,148 |  |  |  | 2,960,569 |  |  |  | 2,028,148 | 2,960,569 |  |  | $ 3.6
Present value of lease liabilities | 2,076,472 |  |  |  |  |  |  |  | 2,076,472 |  |  |  | $ 3.8
Distribution costs |  |  |  |  |  |  |  |  | 890,686 | 613,637 | 457,814 |  |
Advertising costs |  |  |  |  |  |  |  |  | 2,379,424 | 2,594,630 | 2,005,113 |  |
Write off of deferred offering costs |  |  |  |  |  |  |  |  | 440,091 | 0 | 0 |  |
WinHealth Investment (Singapore) Ltd [Domain] |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Initial investment amount |  |  |  |  |  |  |  |  |  |  |  | $ 200,000 |
Product Sales Related Allowances - Chargebacks, Cash Discounts and Damaged Goods |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Accounts receivable, allowances, current | $ 1,000,000.0 |  |  |  | $ 800,000 |  |  |  | 1,000,000.0 | 800,000 |  |  |
Non-US |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Net revenues from customers outside the United States |  |  |  |  |  |  |  |  | $ 2,400,000 | $ 1,500,000 | $ 2,100,000 |  |

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