Bonds Payable (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Bonds Payable [Abstract]

Schedule of bonds payable

	December 31, 2020		September 30, 2021
Bonds payable
Third-party investors	$	29,915	$	—
Total	$	29,915	$	—
Long-term bonds payable
Huzhou Saiyuan	$	73,147	$	73,147
Total	$	73,147	$	73,147

	December 31, 2019		December 31, 2020
Bonds payable
Huzhou Saiyuan Equity Investment Partnership Firm (Limited Partnership) (“Huzhou Saiyuan”)	$	43,888	$	—
Third-party investors		29,915		29,915
Total	$	73,803	$	29,915
Long-term bonds payable
Huzhou Saiyuan	$	29,259	$	73,147
Total	$	29,259	$	73,147

Schedule of repayments and interests

Issuance Date	Subscribed Amount	Maturity Date	Repayment Amount	Annual Interest Rate
February 1, 2019	$29,259 (RMB200 million)	June 30, 2023	$29,259 (RMB200 million)	3%~4%
December 31, 2018	$29,259 (RMB200 million)	April 28, 2024	$14,629 (RMB100 million)	0%~4%
		July 11, 2024	$7,315 (RMB50 million)	0%~4%
		October 1, 2024	$7,315 (RMB50 million)	0%~4%
January 1, 2020	$14,629 (RMB100 million)	April 13, 2026	$14,629 (RMB100 million)	3%~4%

Issuance Date	Subscribed Amount		Maturity Date	Repayment Amount		Annual Interest Rate
February 1, 2019	$	29,259 (RMB200 million)	June 30, 2023	$	29,259 (RMB200 million)	3% ~ 4%
December 31, 2018	$	29,259 (RMB200 million)	April 28, 2024	$	14,629 (RMB100 million)	0% ~ 4%
			July 11, 2024	$	7,315 (RMB50 million)	0% ~ 4%
			October 1, 2024	$	7,315 (RMB50 million)	0% ~ 4%
January 1, 2020	$	14,629 (RMB100 million)	April 13, 2026	$	14,629 (RMB100 million)	3% ~ 4%