CONSOLIDATED STATEMENTS OF INCOME (Parenthetical) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
CONSOLIDATED STATEMENTS OF INCOME
Total cost of revenue (including purchases from related parties of $1,349,331 in 2020 and $10,295 in 2019)	$ 1,349,331	$ 10,295

For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant