Bitrix. Property values ​​of bound elements are not displayed?

Question

1C-Bitrix

Hello.
You need to display the properties of elements bound via "Binding to element". Code of the property to be displayed - NEW_PRICE

Made a result_modifier file

<?php if(!defined("B_PROLOG_INCLUDED") || B_PROLOG_INCLUDED!==true) die();

$arSelect = Array("ID", "NEW_PRICE"); 
$arFilter = Array("IBLOCK_ID"=>6, "ACTIVE"=>"Y","ID"=>$_GET["prices"]);

$res = CIBlockElement::GetList(array("SORT" => "ASC"), $arFilter, false, Array("nPageSize"=>PHP_INT_MAX), $arSelect);

$prices = array();
while($ob = $res->GetNextElement())
{
  $arFields = $ob->GetFields();
  $prices[] = $arFields;
}

$arResult["PRICE_Q"] = $prices;

?>

In news.detail::template wrote

<?if($arResult["PROPERTIES"]["PRICES"]["VALUE"] > 0){?>
  <h4 class="text-center">Цены</h4>
  <section class="bottommargin_30 row item-content ">					
    <div class="prom_beer_wrapper col-sm-12">
      <ul class="list1 no-bullets">
        <?foreach($arResult["PROPERTIES"]["PRICES"]["VALUE"] as $prices):?> 
          <?$res = CIBlockElement::GetByID($prices);?> 
          <?if($ar_res = $res->GetNext())?> 					
          <li class="content-justify"><?=$ar_res["NAME"];?>
          <?=$arResult["PRICE_Q"];?></li>
          <?endforeach;?>
      </ul>						
    </div>					
  </section>
<?}?>

The name is displayed. But instead of NEW_PRICE - Array. Tell me, please, what is the error?