Formula Working Group to hold public “phone in” sessions to discuss the Public Working Draft of the XBRL Formula 1.0 Requirements and Specification

22^nd February, 2007

Two teleconferences are to be hosted by the Formula Working Group (FWG) of XBRL International to provide reviewers with an opportunity to ask questions about the first Public Working Draft (PWD) of the XBRL Formula 1.0 Requirements and Specification that was made available recently. Ideally, participants on the conference call will have read at least the overview document provided as part of the public working draft materials.

The teleconference details are as follows:

+1 866.462.0164 (Toll-free North America)

+1 205.354.0249 (International)

The conference call code is *2074645*

Both of the conference calls will be on March 1^st, 2007. Both will run for one hour.

The first conference call is scheduled for 1300 UTC (see http://www.timeanddate.com/worldclock/fixedtime.html?day=01&month=03&year=2007&hour=13&min=0&sec=0 for your local time)

The second conference call is scheduled for 2000 UTC (see http://www.timeanddate.com/worldclock/fixedtime.html?day=01&month=03&year=2007&hour=20&min=0&sec=0 for your local time)

Announced by

Hugh Wallis

XBRL International

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