Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Name:	us-gaap_PropertyPlantAndEquipmentNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Asset Subject to Buyback (Details) - USD ($)	1 Months Ended	9 Months Ended
Asset Subject to Buyback (Details) - USD ($)	Jan. 22, 2019	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2018
Asset Subject to Buyback (Details) [Line Items]
Net property and equipment		$ 6,266	$ 6,228
Transferred of shares, description	On January 22, 2019, Xi’an Zhonghong completed the transfer of Chengli CDQ WHPG project as the partial repayment for the loan and accrued interest of RMB 188,639,400 ($27.54 million) to HYREF (see Note 8).
Gain on partial repayment of entrusted loan		3,100,000
Chengali [Member]
Asset Subject to Buyback (Details) [Line Items]
Net property and equipment		$ 0	$ 28,920,000
Fixed assets cost				$ 35,240,000