Bom dia. É possível diminuir o espaçamento da minha THEAD?

<table id="tabelavalores" tablename="tabledetailname1" class="table table-layout-fixed" noaddbutton="true" nodeletebutton="true">
                                                <thead>
                                                    <tr class="tableHeadRow">
                                                        <th class="tableColumn">Nome</th>
                                                        <th class="tableColumn">Hr Extra Inicio</th>
                                                        <th class="tableColumn">Hr Extra Fim</th>
                                                        <th class="tableColumn">Total HE</th>
                                                        <!--<th class="tableColumn">Contador</th>-->
                                                        <!--<th class="tableColumn">Inicio Jornada</th>-->
                                                        <!--<th class="tableColumn">Fim Jornada</th>-->
                                                        <th class="form-group col-md-1">
                                                        <label></label>
                                                        </th>
                                                    </tr>
                                                </thead>

Anexo imagem.