Represents the agreed percentage of warrants will be exercised in conjunction with the IPO.

No definition available.

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- Definition

Represents the percentage of warrants will expire in future.

+ References

No definition available.

+ Details

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- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.

+ References

No definition available.

+ Details

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- Definition

Number of warrants or rights outstanding.

+ References

Reference 1: 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.(i))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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Net loss per share per share - Securities excluded from the diluted per share calculation (Details) - shares		12 Months Ended
	Mar. 07, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	May 28, 2019
Antidilutive securities
Antidilutive securities (in shares)		2,727,231	13,828,271	12,116,697
Remaining warrants exercisable		65,000			80,000
Convertible preferred shares (as converted to ordinary shares)
Antidilutive securities
Antidilutive securities (in shares)			11,532,659	9,641,740
Warrants to subscribe for convertible preferred shares (as adjusted to reflect the impact of the share capital reorganization and issuance of bonus shares (Note 1))
Antidilutive securities
Antidilutive securities (in shares)		92,885	1,347,953	1,347,953
Percentage of warrants exercise in conjunction with IPO	50.00%
Percentage of warrants expire	50.00%
Remaining warrants exercisable		65,000
Number of ordinary shares for warrants exercise		92,885
Restricted ordinary shares
Antidilutive securities
Antidilutive securities (in shares)			83,947	162,466
Options to purchase ordinary shares
Antidilutive securities
Antidilutive securities (in shares)		2,634,346	863,712	964,538