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Related Party Transactions (Details)					1 Months Ended				3 Months Ended		12 Months Ended
	Dec. 10, 2014 USD ($)	Aug. 07, 2013 USD ($)	Aug. 07, 2013 CNY (¥)	Jan. 01, 2013	Nov. 23, 2018 USD ($)	Feb. 28, 2018 USD ($)	Aug. 06, 2016	Dec. 31, 2015 USD ($)	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2020 USD ($)	Oct. 14, 2016 USD ($)	Jul. 13, 2015 USD ($)	Mar. 01, 2015 USD ($)	Mar. 01, 2015 CNY (¥)
Related Party Transactions (Details) [Line Items]
Loan paid off						$ 20,400		$ 2,249,279			$ 94,636
Amount due to shareholder								$ 391,374	$ 727,433				$ 727,433
Outstanding loan balance									3,469,633				3,494,307
Loan due description						Mr. Zhenyong Liu agreed to extend the loan for additional 3 years and the remaining balance will be due on July 12, 2021.
Loan from related parties, interest expense
Accrued interest									605,664				429,279
Mr. Zhenyong Liu [Member]
Related Party Transactions (Details) [Line Items]
Loans payable to related party												$ 6,012,416
Interest paid												$ 288,596
Outstanding loan balance									45,653				45,978
Loan from related parties, interest expense										$ 3
Term of loan		3 years	3 years
Chief Executive Officer [Member]
Related Party Transactions (Details) [Line Items]
Loans payable to related party														$ 2,883,091	$ 4,324,636	$ 17,201,342
Outstanding loan balance									209,148				210,635
Industrial building lease term							four
Chief Executive Officer [Member] | Mr. Zhenyong Liu [Member]
Related Party Transactions (Details) [Line Items]
Accrued interest									644,882				649,468
RMB [Member] | Chief Executive Officer [Member]
Related Party Transactions (Details) [Line Items]
Loans payable to related party | ¥																	¥ 120,000,000
Dongfang Paper [Member] | Mr. Zhenyong Liu [Member]
Related Party Transactions (Details) [Line Items]
Loan paid off					$ 158,651
Other payables and accrued liabilities									$ 390,081				$ 392,855
Loans payable to related party	$ 8,742,278
Interest rate on loans	4.35%
Repayment of related party loans					$ 3,768,579	$ 1,507,432
Dongfang Paper [Member] | Mr. Zhenyong Liu [Member]
Related Party Transactions (Details) [Line Items]
Loan payable term, description				On January 1, 2013, Dongfang Paper and Mr. Zhenyong Liu renewed the three-year term loan previously entered on January 1, 2010, and extended the maturity date further to December 31, 2015.
Hebei Fangsheng [Member] | One employee dormitory buildings [Member]
Related Party Transactions (Details) [Line Items]
Sale price of dormitory buildings		$ 2,770,000
Hebei Fangsheng [Member] | Two employee dormitory buildings [Member]
Related Party Transactions (Details) [Line Items]
Sale price of dormitory buildings		1,150,000
Hebei Fangsheng [Member] | Three employees dormitory buildings [Member]
Related Party Transactions (Details) [Line Items]
Sale price of dormitory buildings		4,310,000
Hebei Fangsheng [Member] | RMB [Member]
Related Party Transactions (Details) [Line Items]
Rental payment		$ 153,740	¥ 1,000,000

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