Payables to Former Subsidiaries (Details) - Schedule of payables to a former subsidiaries, net - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Payables to Former Subsidiaries (Details) - Schedule of payables to a former subsidiaries, net [Line Items]
Payables to former subsidiaries, net	$ 382,638	$ 626,990
Bak Tianjin [Member]
Payables to Former Subsidiaries (Details) - Schedule of payables to a former subsidiaries, net [Line Items]
Payables to former subsidiaries, net	21,365	29,852
Bak Shenzhen [Member]
Payables to Former Subsidiaries (Details) - Schedule of payables to a former subsidiaries, net [Line Items]
Payables to former subsidiaries, net	$ 361,273	$ 597,138

Amount payable to related parties classified as other, due within one year or the normal operating cycle, if longer.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(a))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(k)(1))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Name:	us-gaap_DueToOtherRelatedPartiesClassifiedCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant