Bonds Payable (Tables)

12 Months Ended

Dec. 31, 2021

Bonds Payable [Abstract]

Schedule of bonds payable

	December 31, 2020		December 31, 2021
Bonds payable
Third-party investors	$	29,915	$	—
Total	$	29,915	$	—
Long – term bonds payable
Huzhou Saiyuan Equity Investment Partnership (L.P.) (“Huzhou Saiyuan”)	$	73,147	$	73,147
Total	$	73,147	$	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%