protected function _getItem()
 {
     $itemId = $this->getRequest()->getParam('id');
     $item = $this->_service->load($itemId);
     if (empty($item)) {
         throw new NotFoundException($this->_getName() . ' ' . $itemId . ' not found', 404);
     }
     $this->_helper->allowed('read', $item);
     return $item;
 }