Open ListView's clicked item in a new activity

I am creating a project but I am not able to open the listView item, I am already inserting and editing, but I can only open the last created item, for example I have 10 items in the list, only the last one I create independent of which I click opens always the same. if I delete the last created only the previous one it opens. create in the list, test, test1 and test 2. click on any of them and always open the same. I would like to know how I can do to open the item clicked with its content, because only when I click I can delete or edit. What I need to implement is the OneList at the end of DAOideia

insira o código aqui

List.class

public class ListaIdeia extends ActionBarActivity{

    private ListView listView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_lista_ideia);

        this.listView = (ListView)findViewById(R.id.listView);

        ArrayList<Ideia> lista = new DAOIdeia(this).buscar();
        IdeiaAdapter ideiaAdapter = new IdeiaAdapter(this,lista);
        this.listView.setAdapter(ideiaAdapter);


        this.listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {

           @Override
            public void onItemClick(AdapterView<?> adapter, View view, int p, long id) {


                if(p < 200) {
                    Intent segundaActivity = new Intent(ListaIdeia.this, DetalhesIdeia.class);
                    startActivity(segundaActivity);

                }
            }
        });

DAOIdeia.class 

public class DAOIdeia {
    private SQLiteDatabase db;

    public DAOIdeia(Context context){
        this.db = new SQLiteCore(context).getWritableDatabase();
    }

    public void insert(Ideia ideia){
        ContentValues valores = new ContentValues();
        valores.put("nome",ideia.getNome());
        valores.put("descricao",ideia.getDescricao());

        this.db.insert("ideia",null,valores);
    }

    public void update(Ideia ideia){
        ContentValues valores = new ContentValues();
        valores.put("nome",ideia.getNome());
        valores.put("descricao",ideia.getDescricao());

        this.db.update("ideia",valores,"_id = ?",new String[]{""+ideia.get_id()});
    }

    public void delete(Ideia ideia){
        this.db.delete("ideia","_id = ?",new String[]{""+ideia.get_id()});
    }

    public ArrayList<Ideia> buscar(){
        ArrayList<Ideia> lista = new ArrayList<>();
        String[] colunas = new String[]{"_id","nome","descricao"};
        Cursor cursor = this.db.query("ideia",colunas,null,null,null,null,"nome DESC");

        if (cursor.getCount() >0){
            cursor.moveToFirst();
            do{
                Ideia ideia = new Ideia();
                ideia.set_id(cursor.getInt(0));
                ideia.setNome(cursor.getString(1));
                ideia.setDescricao(cursor.getString(2));
                lista.add(ideia);
            }while(cursor.moveToNext());
        }
        return lista;
    }

    public ArrayList<Ideia> listaUma(){
        ArrayList<Ideia> lista = new ArrayList<>();
        String[] colunas = new String[]{"_id","nome","descricao"};
        Cursor cursor = this.db.query("ideia",colunas,null,null,null,null,"nome DESC");

        if (cursor.getCount() >0) {


            Ideia ideia = new Ideia();
            ideia.set_id(cursor.getInt(0));
            ideia.setNome(cursor.getString(1));
            ideia.setDescricao(cursor.getString(2));
            lista.add(ideia);

        }
        return lista;
    }

Part that creates the ArrayList

public class DetalhesIdeia extends ActionBarActivity {

    private ListView listView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_lista_ideia);

        this.listView = (ListView) findViewById(R.id.listView);

        ArrayList<Ideia> lista = new DAOIdeia(this).listaUma();
        IdeiaAdapterEdit IdeiaAdapterEdit = new IdeiaAdapterEdit(this, lista);
        this.listView.setAdapter(IdeiaAdapterEdit);
    }

}