Регулярное выражение, парсинг числа

Всем привет!

HTML:

		<tr id="transactionDetailsRow-57" class="itemInvoiceNumber">
    					<td><label id="transactionRowDate-57" class="transactionRowCell transactionRowDate">05/30/2013</label></td>
    					<td><label id="transactionRowTypeDetailName-57" class="transactionRowCell transactionRowTypeDetailName">Product Purchase</label></td>
    					<td class="accountColumn"><label id="transactionRowAccount-57" class="transactionRowCell transactionRowAccount">[email protected]</label></td>
    					<td><label id="transactionRowCurrency-57" class="transactionRowCell transactionRowCurrency">($3.99)</label></td>
    				</tr>
    			    				<tr id="transactionDetailsRow-58" class="itemInvoiceNumber">
    					<td><label id="transactionRowDate-58" class="transactionRowCell transactionRowDate">05/17/2013</label></td>
    					<td><label id="transactionRowTypeDetailName-58" class="transactionRowCell transactionRowTypeDetailName">Product Purchase</label></td>
    					<td class="accountColumn"><label id="transactionRowAccount-58" class="transactionRowCell transactionRowAccount">[email protected]</label></td>
    					<td><label id="transactionRowCurrency-58" class="transactionRowCell transactionRowCurrency">($0.99)</label></td>
    				</tr>
    			    				<tr id="transactionDetailsRow-59" class="itemInvoiceNumber">
    					<td><label id="transactionRowDate-59" class="transactionRowCell transactionRowDate">05/14/2013</label></td>
    					<td><label id="transactionRowTypeDetailName-59" class="transactionRowCell transactionRowTypeDetailName">Product Purchase</label></td>
    					<td class="accountColumn"><label id="transactionRowAccount-59" class="transactionRowCell transactionRowAccount">[email protected]</label></td>
    					<td><label id="transactionRowCurrency-59" class="transactionRowCell transactionRowCurrency">($4.99)</label></td>
    				</tr>
    			    				<tr id="transactionDetailsRow-60" class="itemInvoiceNumber">
    					<td><label id="transactionRowDate-60" class="transactionRowCell transactionRowDate">05/14/2013</label></td>
    					<td><label id="transactionRowTypeDetailName-60" class="transactionRowCell transactionRowTypeDetailName">Wallet Funding</label></td>
    					<td class="accountColumn"><label id="transactionRowAccount-60" class="transactionRowCell transactionRowAccount">[email protected]</label></td>
    					<td><label id="transactionRowCurrency-60" class="transactionRowCell transactionRowCurrency">$10.00</label></td>
    				</tr>
    			    				<tr id="transactionDetailsRow-61" class="itemInvoiceNumber">
    					<td><label id="transactionRowDate-61" class="transactionRowCell transactionRowDate">05/11/2013</label></td>
    					<td><label id="transactionRowTypeDetailName-61" class="transactionRowCell transactionRowTypeDetailName">Product Purchase</label></td>
    					<td class="accountColumn"><label id="transactionRowAccount-61" class="transactionRowCell transactionRowAccount">[email protected]</label></td>
    					<td><label id="transactionRowCurrency-61" class="transactionRowCell transactionRowCurrency">$0.00</label></td>
    				</tr>

мне нужно скопировать цифру отсюда:
<td><label id="transactionRowCurrency-59" class="transactionRowCell transactionRowCurrency">(
59 - цифра, которую нужно спарсить и только её!!!
Важно!!
нужно чтобы именно в конце была скобка- "(" , если в конце нету скобки - "(" , то не надо парсить это число
на пример:
<td><label id="transactionRowCurrency-56" class="transactionRowCell transactionRowCurrency">$ - не надо парсить число
<td><label id="transactionRowCurrency-59" class="transactionRowCell transactionRowCurrency">($ - надо парсить число!

У меня получилась такая регулярка <td><label id="transactionRowCurrency-(.*?)" class="transactionRowCell transactionRowCurrency"> , но она парсит все числа со скобками и без...

заранее благодарю!

 

Code:

<label id="transactionRowCurrency-(\d+)"\sclass="transactionRowCell transactionRowCurrency">\(

 

HTML:

												</td>
										<td class="productTitleGroup">
											<div class="ellipsisOuterWrapper">
												<div class="ellipsisInnerWrapper">
													<section class="productTitleSection">DC Universe&trade; Online Free to Play</section>
													<label class="smallLabel productPublisherSection">SONY ONLINE ENTERTAINMENT LLC</label>
												</div>
											</div>
										</td>
										<td class="productTypeSection">									 
											Game													
										</td>
										<td class="productPurchasedSection">											
											        				                        																																													<label class="purchaseDate">10/11/2013</label>
																					</td>
										<td class="productExpiresSection">
											                            				                            				<label class="expirationDate">--</label>
										</td>
									</tr>        																			
																	                            			                    					                    					                            			                            																													<tr>
										<td class="productImageSection">
											<input id="mediaItemId_4" class="mediaItemId" type="hidden" value="EP0017-NPEA00266_00" />
											<input id="mediaItemMediaType_4" class="mediaItemMediaType" type="hidden" value="ACCOUNT_SERVICE" />
																							<img id="productImage4" class="mediaListProductImage" src="https://apollo2.dl.playstation.net/cdn/EP0017/NPEA00266_00/vpeZ04ln3F7C3ftC48iwNqShOYfBpXJb.png" />
																					</td>
										<td class="productTitleGroup">
											<div class="ellipsisOuterWrapper">
												<div class="ellipsisInnerWrapper">
													<section class="productTitleSection">DC UNIVERSE&trade; ONLINE</section>
													<label class="smallLabel productPublisherSection">SONY ONLINE ENTERTAINMENT LLC</label>
												</div>
											</div>
										</td>
										<td class="productTypeSection">									 
											<label class='mediaType'>Game</label><label class='smallLabel typeNameSmallLabel'>Service</label>													
										</td>
										<td class="productPurchasedSection">											
																																												<label class="purchaseDate">10/11/2013</label>
																					</td>
										<td class="productExpiresSection">

а как это вытянуть?