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CONSOLIDATED STATEMENTS OF INCOME (Parenthetical) - USD ($) | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Cost of revenue. |  |
Purchases from related parties | $ 437,857 | $ 1,349,331
General and administrative expense |  |
Purchases from related parties | $ 77,190 | $ 0

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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |