Allowance for Doubtful Accounts, Net (Details) - USD ($) |
3 Months Ended | 12 Months Ended | |
|---|---|---|---|
Mar. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
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| Allowance for Credit Loss [Abstract] | |||
| Allowance for doubtful accounts | $ 262,847 | $ 302,929 | $ 150,847 |
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- References No definition available.
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- Definition Amount of direct write-downs of accounts receivable charged against the allowance. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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