exclude top level pages from wp_list_pages with meta_value

Hello, I want to exclude all pages which have no parent and a certain meta_value. Right now I have this below, but it filters all pages. I would like to get only the ones on top level, which have no parent. Can anyone help?

<?php
global $post;
$args=array(
  'post_type' => 'page',
  'meta_key' => 'myextramenu',
  'meta_compare' => '=',
  'meta_value' => 'hideme'
);
$pages = get_posts($args);
if ($pages) {
  $pageids = array();
  foreach ($pages as $page) {
    $pageids[]= $page->ID;
  }
}
?>
<ul>
   <?php wp_list_pages('exclude='.implode(",", $pageids)); ?>
</ul>