Air filesize really big

Hello all,

I'm new with Intellij Idea. I'm trying to develop Air applications with it on Linux Ubuntu 10.10.
This IDE seems to be exactly what I want, but ...

My problem is the production air filesize are really bigger than air files created with fb4linux. I use the same sdk -> 4.1.0 for my tests.

With FB4Linux : 381 Ko
With Intellij Idea : 912 Ko

Here is the simple code :

<?xml version="1.0"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009"
                            xmlns:s="library://ns.adobe.com/flex/spark"
                            xmlns:mx="library://ns.adobe.com/flex/mx">
     <fx:Declarations>
          <!-- Placer ici les éléments non visuels (services et objets de valeur, par exemple). -->
     </fx:Declarations>
     <s:Button label="Test"
                 click="onClick(event)"/>
     <fx:Script>
          <![CDATA[
               import mx.controls.Alert;

               protected function onClick(event:MouseEvent):void
               {
                    Alert.show((event.currentTarget as Button).label);
               }
          ]]>
     </fx:Script>
</s:WindowedApplication>