Taxonomy Item is not shown as hierarchy ?

Hello!

We need create financial estates in XBRL format by using SEM-BCS.

I followed these steps :

1. Dowload taxonomi (OK)

2. Assign Taxonomi Item to CoA. (FAIL : Taxonomi Item is not shown as hierarchy. As result of that cannot sefine mappings )

Does anyone have any idea about why can't show the taxonomy as hierarchy ?

Regards,