Development costs - Summary of Net Capitalized Development Costs (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Jun. 30, 2022
Development Costs [Abstract]
Net capitalized development costs	$ 6,569	$ 2,861

The non-current amount of intangible assets representing such assets under development.

No definition available.

Name:	sang_IntangibleAssetsUnderDevelopmentNonCurrent
Namespace Prefix:	sang_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant