Convert det ID or OID to det ID

def to_det_id(self, det_id_or_det_oid):
        """Convert det ID or OID to det ID"""
        try:
            int(det_id_or_det_oid)
        except ValueError:
            return self.get_det_id(det_id_or_det_oid)
        else:
            return det_id_or_det_oid