public function getTypeIcon()
    {
        switch ($this->getType()) {
            case 'CB':
                $icon = 'credit-card';
                break;
            case 'VIR':
                $icon = 'arrow-circle-o-' . ($this->isNegativeAmount() ? 'up' : 'down');
                break;
            case 'PRE':
                $icon = 'arrow-circle-up';
                break;
            case 'CHQ':
                $icon = 'money';
                break;
            case 'PPL':
                $icon = 'paypal';
                break;
            default:
                $icon = 'money';
        }

        return $icon;
    }