the Company entered into certain securities purchase agreements with several non-U.S. investors (the “Purchasers”), pursuant to which the Company agreed to sell to the Purchasers, an aggregate of up to 3,320,000 shares of common stock of the Company, at $11.522 per share, which is the five-day average closing price immediately prior to signing the Purchase Agreements. One of the purchaser is the Company’s CEO (also is the Company’s Chairman), he purchased 1,000,000 common shares of the Company. On March 11, 2021, the Company received approximately $38.25 million proceeds from the issuance of 3,320,000 shares under the securities purchase agreements, there anywhere no fees paid in connection with this financing. In April 2021, the Company’s CEO amended the number of shares that he would purchase from 1,000,000 shares to 940,000 shares; accordingly, total number of shares sold in this offering became 3,260,000 shares. The Company returned $691,320 extra proceeds that were received earlier to the Company’s CEO in April 2021.

the Company entered into Securities Purchase Agreements with the purchaser and offered and sold to such purchaser 265,250 shares of Common Stock at negotiated purchase prices (132,000 shares at $2.15 per share and 133,250 shares at $2.34 per share) without reference to the market price and received the net proceeds was $497,187 after deducting the placement agent commission and certain expenses. These 265,250 shares were offered and sold in a registered public offering pursuant to the prospectus supplement dated August 24, 2020, and the original prospectus contained in an effective shelf registration statement on Form S-3 (the “Registration Statement”), which was originally filed with the Securities and Exchange Commission on December 1, 2017, and was declared effective on December 8, 2017 (File No. 333-221868).

Shares Issued for Equity Financing and Stock Compensation (Details) [Line Items]

Fair value of shares

$ 10,999

Shares Issued for Equity Financing and Stock Compensation (Details) - USD ($)		1 Months Ended
	Mar. 09, 2020	Feb. 23, 2021	Sep. 28, 2020	Aug. 24, 2020	Mar. 16, 2020
Shares Issued for Equity Financing and Stock Compensation (Details) [Line Items]
Agreement, description		the Company entered into certain securities purchase agreements with several non-U.S. investors (the “Purchasers”), pursuant to which the Company agreed to sell to the Purchasers, an aggregate of up to 3,320,000 shares of common stock of the Company, at $11.522 per share, which is the five-day average closing price immediately prior to signing the Purchase Agreements. One of the purchaser is the Company’s CEO (also is the Company’s Chairman), he purchased 1,000,000 common shares of the Company. On March 11, 2021, the Company received approximately $38.25 million proceeds from the issuance of 3,320,000 shares under the securities purchase agreements, there anywhere no fees paid in connection with this financing. In April 2021, the Company’s CEO amended the number of shares that he would purchase from 1,000,000 shares to 940,000 shares; accordingly, total number of shares sold in this offering became 3,260,000 shares. The Company returned $691,320 extra proceeds that were received earlier to the Company’s CEO in April 2021.	the Company entered into Securities Purchase Agreements with the purchaser and offered and sold to such purchaser 265,250 shares of Common Stock at negotiated purchase prices (132,000 shares at $2.15 per share and 133,250 shares at $2.34 per share) without reference to the market price and received the net proceeds was $497,187 after deducting the placement agent commission and certain expenses. These 265,250 shares were offered and sold in a registered public offering pursuant to the prospectus supplement dated August 24, 2020, and the original prospectus contained in an effective shelf registration statement on Form S-3 (the “Registration Statement”), which was originally filed with the Securities and Exchange Commission on December 1, 2017, and was declared effective on December 8, 2017 (File No. 333-221868).	the Company entered into Securities Purchase Agreements with the purchaser and offered and sold to such purchaser 265,250 shares of Common Stock at negotiated purchase prices (132,000 shares at $2.15 per share and 133,250 shares at $2.34 per share) without reference to the market price and received the net proceeds was $497,187 after deducting the placement agent commission and certain expenses. These 265,250 shares were offered and sold in a registered public offering pursuant to the prospectus supplement dated August 24, 2020, and the original prospectus contained in an effective shelf registration statement on Form S-3 (the “Registration Statement”), which was originally filed with the Securities and Exchange Commission on December 1, 2017, and was declared effective on December 8, 2017 (File No. 333-221868).
Board of Director [Member]
Shares Issued for Equity Financing and Stock Compensation (Details) [Line Items]
Aggregate shares					3,333
Fair value of shares	$ 10,999