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General (Details)	Mar. 16, 2021 shares	Dec. 14, 2020
Restructuring Cost and Reserve [Line Items]
Reverse stock split conversion ratio	4
Merger agreement with Chemomab, an Israeli limited company and a clinical-stage biotech company [Member]
Restructuring Cost and Reserve [Line Items]
Number of ordinary shares represented by each ADS (in shares)	20
Number of ADS issued and outstanding after the merger	12.86
Merger agreement with Chemomab, an Israeli limited company and a clinical-stage biotech company [Member] | Former Chemomab Security Holders [Member]
Restructuring Cost and Reserve [Line Items]
Shareholding percentage immediately following the merger		90.00%
Merger agreement with Chemomab, an Israeli limited company and a clinical-stage biotech company [Member] | Security holders of Anchiano as of immediately prior to the merger [Member]
Restructuring Cost and Reserve [Line Items]
Shareholding percentage immediately following the merger		10.00%

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Number of ADS issued and outstanding after the merger.

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- Definition

shareholding percentage immediately following the merger.

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- Definition

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB TOPIC 4.C)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187143-122770

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