ช่วยทีครับค้นหาข้อมูลแสดงข้อมูลแล้ว พอกดsort มันไม่ sortครับ (jquery)

$.getJSON("http://localhost/master-cms/site/stock", function(data){

		$.each(data, function(key, value){
		//price += parseInt(value);
		console.log(key, value);
			
			$('#sortTableExample tbody').append('<tr><td>'+value['stock_id']+'</td><td>'+value['stock_list']+'</td><td>'+value['stock_unit']+'</td><td>'+value['stock_qty']+'</td><td>'+value['stock_weight']+'</td><td>'+value['stock_price']+'</td><td>'+value['stock_catagorie']+'</td><td>'+value['stock_product_free']+'</td><td>'+value['stock_in_datetime']+'</td></tr>');
			$("#sortTableExample").tablesorter({
				widthFixed: true,
				widgets: [ "zebra" ]
			});

		});
	});
	
		
	$('#search-btn').click(function(){

		var postdata = $('#search').val();

		$.ajax({
			
			type: 'POST',
			url: 'http://localhost/master-cms/site/stock',
			data: {search: postdata, s: 1},
			success: function(data1){

				var search_data = JSON.parse(data1);

				$('#sortTableExample tbody').html(''); //เคลียร์ค่า <tbody></tbody> ก่อนแสดงข้อมูลค้นหา

				$.each(search_data, function(key, value){
				
					$('#sortTableExample tbody').append('<tr><td>'+value['stock_id']+'</td><td>'+value['stock_list']+'</td><td>'+value['stock_unit']+'</td><td>'+value['stock_qty']+'</td><td>'+value['stock_weight']+'</td><td>'+value['stock_price']+'</td><td>'+value['stock_catagorie']+'</td><td>'+value['stock_product_free']+'</td><td>'+value['stock_in_datetime']+'</td></tr>');
					$(".table").tablesorter({
						widthFixed: true,
						widgets: [ "zebra" ]
					});

				});

			}

		});
	});