The number of warrants issued in relation to the issuance of shares.

No definition available.

Name:	drts_SaleOfStockNumberOfWarrantsIssuedInTransaction
Namespace Prefix:	drts_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The percentage increase in the number of warrants granted due to fresh financing agreement.

+ References

No definition available.

+ Details

Name:	drts_WarrantsGrantedIncreaseFromNewFinancing
Namespace Prefix:	drts_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644

+ Details

Name:	us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- 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

Name:	us-gaap_TemporaryEquityLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.

+ References

No definition available.

+ Details

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

- Details

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Namespace Prefix:
Data Type:	na
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Period Type:

CONVERTIBLE PREFERRED SHARES AND WARRANTS - Preferred A shares warrants (Details) - USD ($)	1 Months Ended		12 Months Ended
	Sep. 30, 2018	Apr. 30, 2016	Dec. 31, 2021	Dec. 31, 2019
Convertible Preferred shares
Number of warrants issued	3,614,960	67,897	3,880,777	6,789,694
Exercise price of warrants (in dollar per share)			$ 3.87
Warrants outstanding			$ 3,880,777
Series A Convertible Preferred shares
Convertible Preferred shares
Number of warrants issued			3,614,960
Exercise price of warrants (in dollar per share)			$ 5.04
Additional warrants granted (as a percent)			7.00%