Related Party Balances and Transactions (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2022

Dec. 31, 2021

Related Party Transactions [Abstract]

Schedule of relationship with the group

Name	Relationship with the Group
Ochem Chemical Co., Ltd (“Ochem”)	Controlled by CEO
Ochemate Material Technologies Co., Ltd (“Ochemate”)	Controlled by CEO

Name	Relationship with the Group
Ochem Chemical Co., Ltd (“Ochem”)	Controlled by CEO
Ochemate Material Technologies Co., Ltd (“Ochemate”)	Controlled by CEO

Schedule of related party transactions

	Three Months Ended March 31,
	2021		2022
Raw material sold to Ochem	$	155	$	—

	Year Ended December 31,
	2019		2020		2021
Raw material sold to Ochem	$	—	$	167	$	390