SIGNIFICANT ACCOUNTING POLICIES - Severance pay (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
SIGNIFICANT ACCOUNTING POLICIES
Severance pay monthly deposit rate	8.33%
Severance pay expense	$ 318	$ 194	$ 117

The monthly deposits at a rate of employees monthly salary deposited as severance pay, as required by law.

No definition available.

Name:	drts_SeverancePayDepositRate
Namespace Prefix:	drts_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant