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Restricted Cash (Details)	Dec. 31, 2020 USD ($)		Dec. 31, 2019 USD ($)		Dec. 31, 2019 CNY (¥)	Sep. 25, 2017 USD ($)
Supplemental Cash Flow Elements [Abstract]
Bank deposits used to pledge the bank acceptance notes	$ 695,548
Notes payable	0		$ 908,008
Restricted cash			43,000		¥ 300,000
Non-interest bearing escrow account		[1]	$ 500,000	[1]		$ 500,000
[1] In connection with its initial public offering, the Company agreed to deposit $500,000 in a non-interest bearing escrow account to satisfy the potential indemnification obligation for two years following September 25, 2017. The Company received the deposit in full during the year ended December 31, 2020.

X

- Definition

The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

+ References

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-Section S99
-Paragraph 1
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The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

+ References

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- Definition

Amount of long-term notes payable classified as other.

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- Definition

Amount of cash equivalents restricted as to withdrawal or usage, classified as current. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

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-Publisher FASB
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