private DocumentTypeMSP GetOtherDocumentType()
        {
            var name = "Прочие документы";
            var entity = EntityManager<DocumentTypeMSP>.Instance.Find(c => c.Name == name).FirstOrDefault();
            if (entity == null) {

                entity = new DocumentTypeMSP()
                {
                    Name = name
                };
                entity.Save();
            }

            return entity;
        }