A feature of inline XBRL is its use of HTML (web pages). Linking within a report can be using the standard hyperlinks ‘<a>’. This sort of linking is supported by any web browser and is most useful for a human reading report.
It can also be about using fact-to-fact relationships (such as fact-explanatoryFact) with the right XBRL tooling to make use of them. This sort of linking is for machines to follow and is supported by XBRL tools.
There is a note on Dues Receivable on page 7 of the filing which contains a link (“Bad debt”) back to the relevant table of figures:
Table with “Bad debt” figure:
If you got to the Note 1 and section “Dues receivable”, you will see that “Bad debt” is a link to an item in the Cash flows table.