Modified Custom Post Widget Query

function widget($args, $instance) {
        extract($args);
        $custom_post_id  = ( $instance['custom_post_id'] != '' ) ? esc_attr($instance['custom_post_id']) : __('Find', 'custom-post-widget');
        // Variables from the widget settings.
        $show_custom_post_title = isset( $instance['show_custom_post_title'] ) ? $instance['show_custom_post_title'] : false;
        //$content_post = get_post($custom_post_id);
        $args = array(
            'post_status'=>'publish',
            'post_type'=>'content_block',
            'p'=>$custom_post_id
        );
        $get_posts = null;
        $get_posts = new WP_Query();

        $get_posts->query($args);
        if ( $get_posts->have_posts() ) : while ( $get_posts->have_posts() ) : $get_posts->the_post();

            echo $before_widget;
            if ( $show_custom_post_title ) {
                echo $before_title . get_the_title() . $after_title; // This is the line that displays the title (only if show title is set)
            }
            echo the_content(); // This is where the actual content of the custom post is being displayed

        echo $after_widget;

        endwhile; endif;
    }