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<!-- EDGAR Online I-Metrix Xcelerate Instance Document, based on XBRL 2.1  http://www.edgar-online.com/ -->
<!-- Version:  6.20.1 -->
<!-- Round: 1 -->
<!-- Creation date: 2012-11-07T18:26:20Z -->
<!-- Copyright (c) 2005-2011 EDGAR Online, Inc. All Rights Reserved. -->
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  <rr:ProspectusDate contextRef="eol_0001144204-12-058636_STD_1_20121031_0" id="id_446113_59DAFA37-DE78-45D9-B5DD-195D357EF72D_1_2">2012-10-31</rr:ProspectusDate>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_58">&lt;div style="display:none"&gt;~ http://www.pfmfunds.com/role/ExpenseExample_S000007238Member4 column dei_LegalEntityAxis compact * column rr_ProspectusShareClassAxis compact * row primary compact *  ~&lt;/div&gt;</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:BarChartTableTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_57">&lt;div style="display:none"&gt;~ http://www.pfmfunds.com/role/BarChartData_S000007238Member4 column dei_LegalEntityAxis compact * column rr_ProspectusShareClassAxis compact * row primary compact *  ~&lt;/div&gt;</rr:BarChartTableTextBlock>
  <rr:ObjectivePrimaryTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_2">&lt;tt&gt;To provide high current income consistent with stability, safety of principal,&lt;br /&gt;and liquidity, and to maintain a stable net asset value ("NAV") of $1.00 per&lt;br /&gt;share.&lt;/tt&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_13">&lt;tt&gt;This example is intended to help you compare the cost of investing in the SNAP&lt;br /&gt;Fund Class of the Fund with the cost of investing in other mutual funds and&lt;br /&gt;share classes. The example assumes that you invest $10,000 for the time periods&lt;br /&gt;indicated and then redeem all of your shares at the end of the period. The example &lt;br /&gt;also assumes that you earn a 5% return each year on your investment and that the &lt;br /&gt;operating expenses remain the same.&lt;/tt&gt;</rr:ExpenseExampleNarrativeTextBlock>
  <rr:StrategyNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_20">&lt;tt&gt;The Fund invests exclusively in the following high quality, short-term money&lt;br /&gt;market instruments:&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#x2022; US Government and agency obligations, and repurchase agreements involving these&lt;br /&gt;&amp;#xA0;&amp;#xA0;obligations&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &lt;br /&gt; &amp;#x2022; Obligations of US companies&lt;br /&gt;&lt;br /&gt; &amp;#x2022; Obligations of financial institutions&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#x2022; Obligations of US municipalities&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#x2022; Other money market mutual funds that invest exclusively in these types of&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;obligations&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;The Fund maintains a dollar-weighted average portfolio maturity of no more than&lt;br /&gt;60 days and a dollar-weighted life (final maturity, disregarding interest rate&lt;br /&gt;adjustments) of no more than 120 days.&lt;/tt&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskReturnHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_0">Prime Series SNAP Fund Class Shares</rr:RiskReturnHeading>
  <rr:ExpenseExampleHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_12">Expense Example</rr:ExpenseExampleHeading>
  <rr:ObjectiveHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_1">Investment Objective</rr:ObjectiveHeading>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_29">Past performance may not indicate future results and yields may vary.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:RiskLoseMoney contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_23">Although the Fund seeks to preserve the value of your investment at
$1.00 per share, it is possible to lose money by investing in the Fund.</rr:RiskLoseMoney>
  <rr:RiskHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_21">Principal Investment Risks</rr:RiskHeading>
  <rr:ExpenseExampleByYearCaption contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_14">Although your actual costs may be higher or lower, based on these assumptions, your costs would be:</rr:ExpenseExampleByYearCaption>
  <rr:BarChartHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_30">Year-by-Year Total Return (shown for calendar years) (%)</rr:BarChartHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_25">Performance</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_27">The following information illustrates how the Fund has performed over time.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:BarChartClosingTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_50">&lt;tt&gt;Highest Quarter Return: Q3 2007&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;1.34%&lt;br /&gt;Lowest Quarter Return: Q3 2011&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;0.05%&lt;br /&gt;YTD as of 9/30/12 (not annualized):&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;0.23%&lt;/tt&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceAvailabilityPhone contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_28">(800) 570-SNAP</rr:PerformanceAvailabilityPhone>
  <rr:OperatingExpensesCaption contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_5">Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
  <rr:AverageAnnualReturnCaption contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_51">Average Annual Total Returns (%) (for the periods ended December 31, 2011)</rr:AverageAnnualReturnCaption>
  <rr:RiskNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_22">&lt;tt&gt;Although the Fund invests exclusively in high-quality securities, an investment&lt;br /&gt;in the Fund - like an investment in any money market fund - is subject to&lt;br /&gt;certain risks, such as:&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#x2022; Interest Rate Risk&amp;#xA0;&amp;#xA0;&amp;#xA0;When short-term interest rates fall, the Fund&apos;s yield is&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;likely to fall. When interest rates rise, the values of obligations held by&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;Prime Series may decline. If the rise is sharp or unexpected, the Fund&apos;s share &lt;br /&gt;&amp;#xA0;&amp;#xA0;price could fall.&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#x2022; Credit Risk&amp;#xA0;&amp;#xA0;&amp;#xA0;The issuer of an obligation could fail to pay interest and&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;principal in a timely manner. The credit quality of the Fund&apos;s holdings could&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;change rapidly in certain markets, and the default or decline in credit quality&lt;br /&gt;&amp;#xA0;&amp;#xA0;of even a single holding could cause the Fund&apos;s share price to fall.&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#x2022; Management Risk&amp;#xA0;&amp;#xA0;&amp;#xA0;Performance could be hurt by decisions made by the investment&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;adviser, such as choice of investments and timing of buy/sell decisions.&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt;An investment in the Fund is not insured or guaranteed by the Federal Deposit&lt;br /&gt;Insurance Corporation or any other government agency. Although the Fund seeks to&lt;br /&gt;preserve the value of your investment at $1.00 per share, it is possible to lose&lt;br /&gt;money by investing in the Fund.&lt;/tt&gt;</rr:RiskNarrativeTextBlock>
  <rr:ExpenseHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_3">Fees and Expenses</rr:ExpenseHeading>
  <rr:StrategyHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_19">Principal Investment Strategies</rr:StrategyHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_26">&lt;tt&gt;The following information illustrates how the Fund has performed over time. &lt;br /&gt;For current yield information, call (800) 570-SNAP. Past performance may not&lt;br /&gt;indicate future results and yields may vary.&lt;/tt&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_4">&lt;tt&gt;These are the fees and expenses you may pay when you buy and hold shares of the&lt;br /&gt;SNAP Fund Class of the Fund. Other expenses incurred by the SNAP&amp;#xAE; Program, or by&lt;br /&gt;participants in the SNAP&amp;#xAE; Program, that are not expenses of the Fund are not&lt;br /&gt;reflected.&lt;br /&gt; &lt;/tt&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_59">&lt;div style="display:none"&gt;~ http://www.pfmfunds.com/role/OperatingExpensesData_S000007238Member4 column dei_LegalEntityAxis compact * column rr_ProspectusShareClassAxis compact * row primary compact *  ~&lt;/div&gt;</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:PerformanceTableTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_60">&lt;div style="display:none"&gt;~ http://www.pfmfunds.com/role/PerformanceTableData_S000007238Member4 column dei_LegalEntityAxis compact * column rr_ProspectusShareClassAxis compact * row primary compact *  ~&lt;/div&gt;</rr:PerformanceTableTextBlock>
  <rr:RiskNotInsuredDepositoryInstitution contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1001_24">An investment in the Fund is not insured or guaranteed by the Federal
Deposit Insurance Corporation or any other government agency.</rr:RiskNotInsuredDepositoryInstitution>
  <rr:AnnualReturn2002 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="pure" decimals="4" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_31">0.0186</rr:AnnualReturn2002>
  <rr:LowestQuarterlyReturnLabel contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_47">Lowest Quarter Return:</rr:LowestQuarterlyReturnLabel>
  <rr:HighestQuarterlyReturnLabel contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_44">Highest Quarter Return:</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartYearToDateReturnDate contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_43">2012-09-30</rr:BarChartYearToDateReturnDate>
  <rr:Component1OtherExpensesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="pure" decimals="4" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_8">0.0002</rr:Component1OtherExpensesOverAssets>
  <rr:ExpenseExampleYear01 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="iso4217_USD" decimals="0" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_15">9</rr:ExpenseExampleYear01>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_46">2007-09-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:ExpenseExampleYear03 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="iso4217_USD" decimals="0" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_16">29</rr:ExpenseExampleYear03>
  <rr:BarChartLowestQuarterlyReturn contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="pure" decimals="4" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_48">0.0005</rr:BarChartLowestQuarterlyReturn>
  <rr:AnnualReturn2004 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="pure" decimals="4" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_33">0.0134</rr:AnnualReturn2004>
  <rr:AnnualReturn2010 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="pure" decimals="4" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_39">0.0028</rr:AnnualReturn2010>
  <rr:ExpenseExampleYear10 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="iso4217_USD" decimals="0" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_18">116</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear05 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="iso4217_USD" decimals="0" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_17">51</rr:ExpenseExampleYear05>
  <rr:AnnualReturn2007 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="pure" decimals="4" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_36">0.0536</rr:AnnualReturn2007>
  <rr:BarChartHighestQuarterlyReturn contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="pure" decimals="4" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_45">0.0134</rr:BarChartHighestQuarterlyReturn>
  <rr:AverageAnnualReturnYear01 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="pure" decimals="4" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_52">0.0021</rr:AverageAnnualReturnYear01>
  <rr:OtherExpensesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="pure" decimals="4" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_10">0.0003</rr:OtherExpensesOverAssets>
  <rr:AnnualReturn2008 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="pure" decimals="4" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_37">0.0302</rr:AnnualReturn2008>
  <rr:ManagementFeesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="pure" decimals="4" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_6">0.0006</rr:ManagementFeesOverAssets>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_49">2011-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:AnnualReturn2009 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="pure" decimals="4" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_38">0.0068</rr:AnnualReturn2009>
  <rr:AverageAnnualReturnYear05 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="pure" decimals="4" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_53">0.0189</rr:AverageAnnualReturnYear05>
  <rr:AnnualReturn2005 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="pure" decimals="4" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_34">0.0320</rr:AnnualReturn2005>
  <rr:YearToDateReturnLabel contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_41">YTD</rr:YearToDateReturnLabel>
  <rr:Component2OtherExpensesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="pure" decimals="4" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_9">0.0001</rr:Component2OtherExpensesOverAssets>
  <rr:AnnualReturn2011 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="pure" decimals="4" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_40">0.0021</rr:AnnualReturn2011>
  <rr:AnnualReturn2003 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="pure" decimals="4" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_32">0.0116</rr:AnnualReturn2003>
  <rr:DistributionAndService12b1FeesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="pure" decimals="4" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_7">0.0000</rr:DistributionAndService12b1FeesOverAssets>
  <rr:AverageAnnualReturnYear10 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="pure" decimals="4" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_54">0.0220</rr:AverageAnnualReturnYear10>
  <rr:ExpensesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="pure" decimals="4" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_11">0.0009</rr:ExpensesOverAssets>
  <rr:AnnualReturn2006 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="pure" decimals="4" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_35">0.0511</rr:AnnualReturn2006>
  <rr:AverageAnnualReturnSinceInception contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="pure" decimals="4" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_55">0.0347</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnInceptionDate contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_56">1995-07-24</rr:AverageAnnualReturnInceptionDate>
  <rr:BarChartYearToDateReturn contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979754_602488x-9979766" unitRef="pure" decimals="4" id="id_446113_14BAE2F9-8750-454B-8EEF-4C82E0A1AEC0_1002_42">0.0023</rr:BarChartYearToDateReturn>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_61">&lt;div style="display:none"&gt;~ http://www.pfmfunds.com/role/ExpenseExample_S000007238Member3 column dei_LegalEntityAxis compact * column rr_ProspectusShareClassAxis compact * row primary compact *  ~&lt;/div&gt;</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:BarChartTableTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_60">&lt;div style="display:none"&gt;~ http://www.pfmfunds.com/role/BarChartData_S000007238Member3 column dei_LegalEntityAxis compact * column rr_ProspectusShareClassAxis compact * row primary compact *  ~&lt;/div&gt;</rr:BarChartTableTextBlock>
  <rr:ObjectivePrimaryTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_2">&lt;tt&gt;To provide high current income consistent with stability, safety of principal,&lt;br /&gt;and liquidity, and to maintain a stable net asset value of $1.00 per share.&lt;/tt&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_16">&lt;tt&gt;This example is intended to help you compare the cost of investing in the&lt;br /&gt;Colorado Investors Class of Prime Series with the cost of investing in other&lt;br /&gt;mutual funds and share classes. The example assumes that you invest $10,000 for&lt;br /&gt;the time periods indicated and then redeem all of your shares at the end of the&lt;br /&gt;period. The example also assumes that you earn a 5% return each year on your&lt;br /&gt;investment and that the operating expenses remain the same.&lt;/tt&gt;</rr:ExpenseExampleNarrativeTextBlock>
  <rr:StrategyNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_23">&lt;tt&gt;Prime Series invests exclusively in the following high quality, short-term money&lt;br /&gt;market instruments:&lt;br /&gt; &lt;br /&gt; &amp;#xB7; US Government and agency obligations, and repurchase agreements involving these&lt;br /&gt;&amp;#xA0;&amp;#xA0;obligations&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &lt;br /&gt; &amp;#xB7; Obligations of US companies&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#xB7; Obligations of financial institutions&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#xB7; Obligations of US municipalities&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#xB7; Other money market mutual funds that invest exclusively in these types of&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;obligations&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt;Prime Series maintains a dollar-weighted average portfolio maturity of no more&lt;br /&gt;than 60 days and a dollar-weighted life (final maturity, disregarding interest&lt;br /&gt;rate adjustments) of no more than 120 days.&lt;/tt&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskReturnHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_0">Prime Series Colorado Investors Class</rr:RiskReturnHeading>
  <rr:ExpenseExampleHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_15">Expense Example</rr:ExpenseExampleHeading>
  <rr:ObjectiveHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_1">Investment Objective</rr:ObjectiveHeading>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_32">Past performance may not indicate future results and yields may vary.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:RiskLoseMoney contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_26">Although Prime Series seeks to preserve the value of your investment at
$1.00 per share, it is possible to lose money by investing in Prime Series.</rr:RiskLoseMoney>
  <rr:RiskHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_24">Principal Investment Risks</rr:RiskHeading>
  <rr:ExpenseExampleByYearCaption contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_17">Although your actual costs may be higher or lower, based on these assumptions, your costs would be:</rr:ExpenseExampleByYearCaption>
  <rr:BarChartHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_33">Year-by-Year Total Return (shown for calendar years) (%)</rr:BarChartHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_28">Performance</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_30">The following information is intended to illustrate how the SNAP Fund Class of Prime Series has performed over time.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:BarChartClosingTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_53">&lt;tt&gt;Highest Quarter Return: Q3 2007&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;1.34%&lt;br /&gt;Lowest Quarter Return: Q3 2011&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;0.05%&lt;br /&gt;YTD as of 9/30/12 (not annualized):&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;0.23%&lt;/tt&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceAvailabilityPhone contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_31">(800) 338-3383</rr:PerformanceAvailabilityPhone>
  <rr:OperatingExpensesCaption contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_5">Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
  <rr:AverageAnnualReturnCaption contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_54">Average Annual Total Return (%) (for the periods ended December 31, 2011)</rr:AverageAnnualReturnCaption>
  <rr:RiskNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_25">&lt;tt&gt;Although Prime Series invests exclusively in high-quality securities, an&lt;br /&gt;investment in Prime Series - like an investment in any money market fund - is&lt;br /&gt;subject to certain risks, such as:&lt;br /&gt; &lt;br /&gt; &amp;#xB7; Interest Rate Risk&amp;#xA0;&amp;#xA0;&amp;#xA0;When short-term interest rates fall, Prime Series&apos; yield is &lt;br /&gt;&amp;#xA0;&amp;#xA0;likely to fall. When interest rates rise, the values of obligations held by&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;Prime Series may decline. If the rise is sharp or unexpected, Prime Series&apos;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;share price could fall.&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#xB7; Credit Risk&amp;#xA0;&amp;#xA0;&amp;#xA0;The issuer of an obligation could fail to pay interest and&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;principal in a timely manner. The credit quality of Prime Series&apos; holdings&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;could change rapidly in certain markets, and the default or decline in credit&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;quality of even a single holding could cause Prime Series&apos; share price to fall.&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#xB7; Management Risk&amp;#xA0;&amp;#xA0;&amp;#xA0;Performance could be hurt by decisions made by the investment&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;adviser, such as choice of investments and timing of buy/sell decisions.&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt;An investment in Prime Series is not insured or guaranteed by the Federal&lt;br /&gt;Deposit Insurance Corporation or any other government agency. Although Prime&lt;br /&gt;Series seeks to preserve the value of your investment at $1.00 per share, it is&lt;br /&gt;possible to lose money by investing in Prime Series.&lt;/tt&gt;</rr:RiskNarrativeTextBlock>
  <rr:ExpenseHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_3">Fees and Expenses</rr:ExpenseHeading>
  <rr:StrategyHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_22">Principal Investment Strategies</rr:StrategyHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_29">&lt;tt&gt;The following information is intended to illustrate how the SNAP Fund Class of&lt;br /&gt;Prime Series has performed over time. Performance information for the Colorado&lt;br /&gt;Investors Class is not shown because that class does not have annual returns for&lt;br /&gt;at least one calendar year. The performance of the Colorado Investors Class of&lt;br /&gt;Prime Series will vary due to different expenses than those of the SNAP Fund&lt;br /&gt;Class of Prime Series. For current yield information, call (800) 338-3383. Past&lt;br /&gt;performance may not indicate future results and yields may vary.&lt;br /&gt; &lt;/tt&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_4">&lt;tt&gt;These are the fees and expenses you may pay when you buy and hold shares of the&lt;br /&gt;Colorado Investors Class of Prime Series.&lt;/tt&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_62">&lt;div style="display:none"&gt;~ http://www.pfmfunds.com/role/OperatingExpensesData_S000007238Member3 column dei_LegalEntityAxis compact * column rr_ProspectusShareClassAxis compact * row primary compact *  ~&lt;/div&gt;</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:PerformanceTableTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_63">&lt;div style="display:none"&gt;~ http://www.pfmfunds.com/role/PerformanceTableData_S000007238Member3 column dei_LegalEntityAxis compact * column rr_ProspectusShareClassAxis compact * row primary compact *  ~&lt;/div&gt;</rr:PerformanceTableTextBlock>
  <rr:RiskNotInsuredDepositoryInstitution contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1001_27">An investment in Prime Series is not insured or guaranteed by the Federal
Deposit Insurance Corporation or any other government agency.</rr:RiskNotInsuredDepositoryInstitution>
  <rr:AnnualReturn2002 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_34">0.0186</rr:AnnualReturn2002>
  <rr:LowestQuarterlyReturnLabel contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_50">Lowest Quarter Return:</rr:LowestQuarterlyReturnLabel>
  <rr:HighestQuarterlyReturnLabel contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_47">Highest Quarter Return:</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartYearToDateReturnDate contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_46">2012-09-30</rr:BarChartYearToDateReturnDate>
  <rr:Component1OtherExpensesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_8">0.0009</rr:Component1OtherExpensesOverAssets>
  <rr:ExpenseExampleYear01 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="iso4217_USD" decimals="0" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_18">13</rr:ExpenseExampleYear01>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_49">2007-09-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:ExpenseExampleYear03 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="iso4217_USD" decimals="0" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_19">48</rr:ExpenseExampleYear03>
  <rr:BarChartLowestQuarterlyReturn contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_51">0.0005</rr:BarChartLowestQuarterlyReturn>
  <rr:AnnualReturn2004 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_36">0.0134</rr:AnnualReturn2004>
  <rr:FeeWaiverOrReimbursementOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_12">-0.0004</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:AnnualReturn2010 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_42">0.0028</rr:AnnualReturn2010>
  <rr:ExpenseExampleYear10 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="iso4217_USD" decimals="0" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_21">201</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear05 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="iso4217_USD" decimals="0" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_20">86</rr:ExpenseExampleYear05>
  <rr:AnnualReturn2007 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_39">0.0536</rr:AnnualReturn2007>
  <rr:BarChartHighestQuarterlyReturn contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_48">0.0134</rr:BarChartHighestQuarterlyReturn>
  <rr:AverageAnnualReturnYear01 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_55">0.0021</rr:AverageAnnualReturnYear01>
  <rr:OtherExpensesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_10">0.0010</rr:OtherExpensesOverAssets>
  <rr:AnnualReturn2008 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_40">0.0302</rr:AnnualReturn2008>
  <rr:ManagementFeesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_6">0.0006</rr:ManagementFeesOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_13">2013-10-31</rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_52">2011-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:AnnualReturn2009 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_41">0.0068</rr:AnnualReturn2009>
  <rr:AverageAnnualReturnYear05 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_56">0.0189</rr:AverageAnnualReturnYear05>
  <rr:AnnualReturn2005 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_37">0.0320</rr:AnnualReturn2005>
  <rr:YearToDateReturnLabel contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_44">YTD</rr:YearToDateReturnLabel>
  <rr:Component2OtherExpensesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_9">0.0001</rr:Component2OtherExpensesOverAssets>
  <rr:AnnualReturn2011 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_43">0.0021</rr:AnnualReturn2011>
  <rr:AnnualReturn2003 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_35">0.0116</rr:AnnualReturn2003>
  <rr:DistributionAndService12b1FeesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_7">0.0000</rr:DistributionAndService12b1FeesOverAssets>
  <rr:AverageAnnualReturnYear10 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_57">0.0220</rr:AverageAnnualReturnYear10>
  <rr:NetExpensesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_14">0.0012</rr:NetExpensesOverAssets>
  <rr:ExpensesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_11">0.0016</rr:ExpensesOverAssets>
  <rr:AnnualReturn2006 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_38">0.0511</rr:AnnualReturn2006>
  <rr:AverageAnnualReturnSinceInception contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_58">0.0347</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnInceptionDate contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_59">1995-07-24</rr:AverageAnnualReturnInceptionDate>
  <rr:BarChartYearToDateReturn contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979755_602488x-9979762" unitRef="pure" decimals="4" id="id_446113_596C601A-3218-47C6-9A3E-10FA58B40B72_1002_45">0.0023</rr:BarChartYearToDateReturn>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_49">&lt;div style="display:none"&gt;~ http://www.pfmfunds.com/role/ExpenseExample_S000007238Member2 column dei_LegalEntityAxis compact * column rr_ProspectusShareClassAxis compact * row primary compact *  ~&lt;/div&gt;</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:BarChartTableTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_48">&lt;div style="display:none"&gt;~ http://www.pfmfunds.com/role/BarChartData_S000007238Member2 column dei_LegalEntityAxis compact * column rr_ProspectusShareClassAxis compact * row primary compact *  ~&lt;/div&gt;</rr:BarChartTableTextBlock>
  <rr:ObjectivePrimaryTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_2">&lt;tt&gt;To provide high current income consistent with stability, safety of principal,&lt;br /&gt;and liquidity, and to maintain a stable net asset value of $1.00 per share.&lt;/tt&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_14">&lt;tt&gt;This example is intended to help you compare the cost of investing in the&lt;br /&gt;Independent Schools Class of Prime Series with the cost of investing in other&lt;br /&gt;mutual funds and share classes. The example assumes that you invest $10,000 for&lt;br /&gt;the time periods indicated and then redeem all of your shares at the end of the&lt;br /&gt;period. The example also assumes that you earn a 5% return each year on your&lt;br /&gt;investment and that the operating expenses remain the same.&lt;/tt&gt;</rr:ExpenseExampleNarrativeTextBlock>
  <rr:StrategyNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_21">&lt;tt&gt;Prime Series invests exclusively in the following high quality, short-term money&lt;br /&gt;market instruments:&lt;br /&gt;&lt;br /&gt; &amp;#xB7; US Government and agency obligations, and repurchase agreements involving these&lt;br /&gt;&amp;#xA0;&amp;#xA0;obligations&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#xB7; Obligations of US companies&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#xB7; Obligations of financial institutions&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#xB7; Obligations of US municipalities&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#xB7; Other money market mutual funds that invest exclusively in these types of&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;obligations&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt;Prime Series maintains a dollar-weighted average portfolio maturity of no more&lt;br /&gt;than 60 days and a dollar-weighted life (final maturity, disregarding interest&lt;br /&gt;rate adjustments) of no more than 120 days.&lt;/tt&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskReturnHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_0">Prime Series Independent Schools and Colleges Class</rr:RiskReturnHeading>
  <rr:ExpenseExampleHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_13">Expense Example</rr:ExpenseExampleHeading>
  <rr:ObjectiveHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_1">Investment Objective</rr:ObjectiveHeading>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_30">Past performance may not indicate future results and yields may vary.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:RiskLoseMoney contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_24">Although Prime Series seeks to preserve the value of your investment at
$1.00 per share, it is possible to lose money by investing in Prime Series.</rr:RiskLoseMoney>
  <rr:RiskHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_22">Principal Investment Risks</rr:RiskHeading>
  <rr:ExpenseExampleByYearCaption contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_15">Although your actual costs may be higher or lower, based on these assumptions, your costs would be:</rr:ExpenseExampleByYearCaption>
  <rr:BarChartHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_31">Year-by-Year Total Return (shown for calendar years) (%)</rr:BarChartHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_26">Performance</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_28">The following information illustrates how Independent Schools Class Shares have performed over time.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:BarChartClosingTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_43">&lt;tt&gt;Highest Quarter Return: Q3 2010&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;0.06%&lt;br /&gt;Lowest Quarter Return: Q2 2011&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;0.03%&lt;br /&gt;YTD as of 9/30/12 (not annualized):&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;0.16%&lt;/tt&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceAvailabilityPhone contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_29">(800) 338-3383</rr:PerformanceAvailabilityPhone>
  <rr:OperatingExpensesCaption contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_5">Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
  <rr:AverageAnnualReturnCaption contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_44">Average Annual Total Return (%) (for the periods ended December 31, 2011)</rr:AverageAnnualReturnCaption>
  <rr:RiskNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_23">&lt;tt&gt;Although Prime Series invests exclusively in high-quality securities, an&lt;br /&gt;investment in Prime Series - like an investment in any money market fund - is&lt;br /&gt;subject to certain risks, such as:&lt;br /&gt; &lt;br /&gt; &amp;#xB7; Interest Rate&amp;#xA0;&amp;#xA0;&amp;#xA0;Risk When short-term interest rates fall, Prime Series&apos; yield is &lt;br /&gt;&amp;#xA0;&amp;#xA0;likely to fall. When interest rates rise, the values of obligations held by&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;Prime Series may decline. If the rise is sharp or unexpected, Prime Series&apos;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;share price could fall.&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#xB7; Credit Risk&amp;#xA0;&amp;#xA0;&amp;#xA0;The issuer of an obligation could fail to pay interest and&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;principal in a timely manner. The credit quality of Prime Series&apos; holdings&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;could change rapidly in certain markets, and the default or decline in credit&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;quality of even a single holding could cause Prime Series&apos; share price to fall.&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#xB7; Management Risk&amp;#xA0;&amp;#xA0;&amp;#xA0;Performance could be hurt by decisions made by the investment&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;adviser, such as choice of investments and timing of buy/sell decisions.&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &lt;br /&gt;An investment in Prime Series is not insured or guaranteed by the Federal&lt;br /&gt;Deposit Insurance Corporation or any other government agency. Although Prime&lt;br /&gt;Series seeks to preserve the value of your investment at $1.00 per share, it is&lt;br /&gt;possible to lose money by investing in Prime Series.&lt;/tt&gt;</rr:RiskNarrativeTextBlock>
  <rr:ExpenseHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_3">Fees and Expenses</rr:ExpenseHeading>
  <rr:StrategyHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_20">Principal Investment Strategies</rr:StrategyHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_27">&lt;tt&gt;The following information illustrates how Independent Schools Class Shares have&lt;br /&gt;performed over time. For current yield information, call (800) 338-3383. Returns&lt;br /&gt;for other classes were different and are not shown here. Past performance may&lt;br /&gt;not indicate future results and yields may vary.&lt;/tt&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_4">&lt;tt&gt;These are the fees and expenses you may pay when you buy and hold shares of the&lt;br /&gt;Independent Schools Class of Prime Series.&lt;/tt&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_50">&lt;div style="display:none"&gt;~ http://www.pfmfunds.com/role/OperatingExpensesData_S000007238Member2 column dei_LegalEntityAxis compact * column rr_ProspectusShareClassAxis compact * row primary compact *  ~&lt;/div&gt;</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:PerformanceTableTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_51">&lt;div style="display:none"&gt;~ http://www.pfmfunds.com/role/PerformanceTableData_S000007238Member2 column dei_LegalEntityAxis compact * column rr_ProspectusShareClassAxis compact * row primary compact *  ~&lt;/div&gt;</rr:PerformanceTableTextBlock>
  <rr:RiskNotInsuredDepositoryInstitution contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1001_25">An investment in Prime Series is not insured or guaranteed by the Federal
Deposit Insurance Corporation or any other government agency.</rr:RiskNotInsuredDepositoryInstitution>
  <rr:LowestQuarterlyReturnLabel contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_40">Lowest Quarter Return:</rr:LowestQuarterlyReturnLabel>
  <rr:HighestQuarterlyReturnLabel contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_37">Highest Quarter Return:</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartYearToDateReturnDate contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_36">2012-09-30</rr:BarChartYearToDateReturnDate>
  <rr:Component1OtherExpensesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" unitRef="pure" decimals="4" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_8">0.0017</rr:Component1OtherExpensesOverAssets>
  <rr:ExpenseExampleYear01 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" unitRef="iso4217_USD" decimals="0" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_16">27</rr:ExpenseExampleYear01>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_39">2010-09-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:ExpenseExampleYear03 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" unitRef="iso4217_USD" decimals="0" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_17">84</rr:ExpenseExampleYear03>
  <rr:BarChartLowestQuarterlyReturn contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" unitRef="pure" decimals="4" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_41">0.0003</rr:BarChartLowestQuarterlyReturn>
  <rr:AnnualReturn2010 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" unitRef="pure" decimals="4" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_32">0.0019</rr:AnnualReturn2010>
  <rr:ExpenseExampleYear10 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" unitRef="iso4217_USD" decimals="0" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_19">331</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear05 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" unitRef="iso4217_USD" decimals="0" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_18">146</rr:ExpenseExampleYear05>
  <rr:BarChartHighestQuarterlyReturn contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" unitRef="pure" decimals="4" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_38">0.0006</rr:BarChartHighestQuarterlyReturn>
  <rr:AverageAnnualReturnYear01 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" unitRef="pure" decimals="4" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_45">0.0017</rr:AverageAnnualReturnYear01>
  <rr:OtherExpensesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" unitRef="pure" decimals="4" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_10">0.0020</rr:OtherExpensesOverAssets>
  <rr:ManagementFeesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" unitRef="pure" decimals="4" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_6">0.0006</rr:ManagementFeesOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_12">2013-10-31</rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_42">2011-06-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:YearToDateReturnLabel contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_34">YTD</rr:YearToDateReturnLabel>
  <rr:Component2OtherExpensesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" unitRef="pure" decimals="4" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_9">0.0003</rr:Component2OtherExpensesOverAssets>
  <rr:AnnualReturn2011 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" unitRef="pure" decimals="4" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_33">0.0017</rr:AnnualReturn2011>
  <rr:DistributionAndService12b1FeesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" unitRef="pure" decimals="4" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_7">0.0000</rr:DistributionAndService12b1FeesOverAssets>
  <rr:ExpensesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" unitRef="pure" decimals="4" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_11">0.0026</rr:ExpensesOverAssets>
  <rr:AverageAnnualReturnSinceInception contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" unitRef="pure" decimals="4" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_46">0.0022</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnInceptionDate contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_47">2009-05-11</rr:AverageAnnualReturnInceptionDate>
  <rr:BarChartYearToDateReturn contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979756_602488x-9979764" unitRef="pure" decimals="4" id="id_446113_3F0A9910-3FC8-499F-8839-5CD07C5B6180_1002_35">0.0016</rr:BarChartYearToDateReturn>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_49">&lt;div style="display:none"&gt;~ http://www.pfmfunds.com/role/ExpenseExample_S000007238Member1 column dei_LegalEntityAxis compact * column rr_ProspectusShareClassAxis compact * row primary compact *  ~&lt;/div&gt;</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:BarChartTableTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_48">&lt;div style="display:none"&gt;~ http://www.pfmfunds.com/role/BarChartData_S000007238Member1 column dei_LegalEntityAxis compact * column rr_ProspectusShareClassAxis compact * row primary compact *  ~&lt;/div&gt;</rr:BarChartTableTextBlock>
  <rr:ObjectivePrimaryTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_2">&lt;tt&gt;To provide high current income consistent with stability, safety of principal,&lt;br /&gt;and liquidity, and to maintain a stable net asset value of $1.00 per share.&lt;/tt&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_13">&lt;tt&gt;This example is intended to help you compare the cost of investing in the&lt;br /&gt;Institutional Class of Prime Series with the cost of investing in other mutual&lt;br /&gt;funds and share classes. The example assumes that you invest $10,000 for the&lt;br /&gt;time periods indicated and then redeem all of your shares at the end of the&lt;br /&gt;period. The example also assumes that you earn a 5% return each year on your&lt;br /&gt;investment and that the operating expenses remain the same.&lt;/tt&gt;</rr:ExpenseExampleNarrativeTextBlock>
  <rr:StrategyNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_20">&lt;tt&gt;Prime Series invests exclusively in the following high quality, short-term money&lt;br /&gt;market instruments:&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#xB7; US Government and agency obligations, and repurchase agreements involving these&lt;br /&gt;&amp;#xA0;&amp;#xA0;obligations&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#xB7; Obligations of US companies&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#xB7; Obligations of financial institutions&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#xB7; Obligations of US municipalities&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#xB7; Other money market mutual funds that invest exclusively in these types of&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;obligations&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &lt;br /&gt;Prime Series maintains a dollar-weighted average portfolio maturity of no more&lt;br /&gt;than 60 days and a dollar-weighted life (final maturity, disregarding interest&lt;br /&gt;rate adjustments) of no more than 120 days.&lt;/tt&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskReturnHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_0">Prime Series Institutional Class</rr:RiskReturnHeading>
  <rr:ExpenseExampleHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_12">Expense Example</rr:ExpenseExampleHeading>
  <rr:ObjectiveHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_1">Investment Objective</rr:ObjectiveHeading>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_29">Past performance may not indicate future results and yields may vary.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:RiskLoseMoney contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_23">Although Prime Series seeks to preserve the value of your investment at $1.00
per share, it is possible to lose money by investing in Prime Series.</rr:RiskLoseMoney>
  <rr:RiskHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_21">Principal Investment Risks</rr:RiskHeading>
  <rr:ExpenseExampleByYearCaption contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_14">Although your actual costs may be higher or lower, based on these assumptions, your costs would be:</rr:ExpenseExampleByYearCaption>
  <rr:BarChartHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_30">Year-by-Year Total Return (shown for calendar years) (%)</rr:BarChartHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_25">Performance</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_27">The following information illustrates how Institutional Class Shares have performed over time.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:BarChartClosingTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_43">&lt;tt&gt;Highest Quarter Return: Q1 2009&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;0.29%&lt;br /&gt;Lowest Quarter Return: Q3 2011&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;0.03%&lt;br /&gt;YTD as of 9/30/12 (not annualized):&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;0.17%&lt;/tt&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceAvailabilityPhone contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_28">(800) 338-3383</rr:PerformanceAvailabilityPhone>
  <rr:OperatingExpensesCaption contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_5">Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
  <rr:AverageAnnualReturnCaption contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_44">Average Annual Total Return (%) (for the periods ended December 31, 2011)</rr:AverageAnnualReturnCaption>
  <rr:RiskNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_22">&lt;tt&gt;Although Prime Series invests exclusively in high-quality securities, an&lt;br /&gt;investment in Prime Series - like an investment in any money market fund - is&lt;br /&gt;subject to certain risks, such as:&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#xB7; Interest Rate Risk&amp;#xA0;&amp;#xA0;&amp;#xA0;When short-term interest rates fall, Prime Series&apos; yield &lt;br /&gt;&amp;#xA0;&amp;#xA0;is likely to fall. When interest rates rise, the values of obligations held by&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;Prime Series may decline. If the rise is sharp or unexpected, Prime Series&apos;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;share price could fall.&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#xB7; Credit Risk&amp;#xA0;&amp;#xA0;&amp;#xA0;The issuer of an obligation could fail to pay interest and&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;principal in a timely manner. The credit quality of Prime Series&apos; holdings&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;could change rapidly in certain markets, and the default or decline in credit&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;quality of even a single holding could cause Prime Series&apos; share price to fall.&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#xB7; Management Risk&amp;#xA0;&amp;#xA0;&amp;#xA0;Performance could be hurt by decisions made by the investment&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;adviser, such as choice of investments and timing of buy/sell decisions.&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &lt;br /&gt;An investment in Prime Series is not insured or guaranteed by the Federal&lt;br /&gt;Deposit Insurance Corporation or any other government agency. Although Prime&lt;br /&gt;Series seeks to preserve the value of your investment at $1.00 per share, it is&lt;br /&gt;possible to lose money by investing in Prime Series.&lt;/tt&gt;</rr:RiskNarrativeTextBlock>
  <rr:ExpenseHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_3">Fees and Expenses</rr:ExpenseHeading>
  <rr:StrategyHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_19">Principal Investment Strategies</rr:StrategyHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_26">&lt;tt&gt;The following information illustrates how Institutional Class Shares have&lt;br /&gt;performed over time. For current yield information, call (800) 338-3383. &lt;br /&gt;Returns for other classes were different and are not shown here. Past &lt;br /&gt;performance may not indicate future results and yields may vary.&lt;/tt&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_4">&lt;tt&gt;These are the fees and expenses you may pay when you buy and hold shares of the&lt;br /&gt;Institutional Class of Prime Series.&lt;/tt&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_50">&lt;div style="display:none"&gt;~ http://www.pfmfunds.com/role/OperatingExpensesData_S000007238Member1 column dei_LegalEntityAxis compact * column rr_ProspectusShareClassAxis compact * row primary compact *  ~&lt;/div&gt;</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:PerformanceTableTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_51">&lt;div style="display:none"&gt;~ http://www.pfmfunds.com/role/PerformanceTableData_S000007238Member1 column dei_LegalEntityAxis compact * column rr_ProspectusShareClassAxis compact * row primary compact *  ~&lt;/div&gt;</rr:PerformanceTableTextBlock>
  <rr:RiskNotInsuredDepositoryInstitution contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1001_24">An investment in Prime Series is not insured or guaranteed by the Federal
Deposit Insurance Corporation or any other government agency.</rr:RiskNotInsuredDepositoryInstitution>
  <rr:LowestQuarterlyReturnLabel contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_40">Lowest Quarter Return:</rr:LowestQuarterlyReturnLabel>
  <rr:HighestQuarterlyReturnLabel contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_37">Highest Quarter Return:</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartYearToDateReturnDate contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_36">2012-09-30</rr:BarChartYearToDateReturnDate>
  <rr:Component1OtherExpensesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" unitRef="pure" decimals="4" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_8">0.0009</rr:Component1OtherExpensesOverAssets>
  <rr:ExpenseExampleYear01 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" unitRef="iso4217_USD" decimals="0" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_15">17</rr:ExpenseExampleYear01>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_39">2009-03-31</rr:BarChartHighestQuarterlyReturnDate>
  <rr:ExpenseExampleYear03 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" unitRef="iso4217_USD" decimals="0" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_16">55</rr:ExpenseExampleYear03>
  <rr:BarChartLowestQuarterlyReturn contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" unitRef="pure" decimals="4" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_41">0.0003</rr:BarChartLowestQuarterlyReturn>
  <rr:AnnualReturn2010 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" unitRef="pure" decimals="4" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_32">0.0020</rr:AnnualReturn2010>
  <rr:ExpenseExampleYear10 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" unitRef="iso4217_USD" decimals="0" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_18">217</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear05 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" unitRef="iso4217_USD" decimals="0" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_17">96</rr:ExpenseExampleYear05>
  <rr:BarChartHighestQuarterlyReturn contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" unitRef="pure" decimals="4" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_38">0.0029</rr:BarChartHighestQuarterlyReturn>
  <rr:AverageAnnualReturnYear01 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" unitRef="pure" decimals="4" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_45">0.0014</rr:AverageAnnualReturnYear01>
  <rr:OtherExpensesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" unitRef="pure" decimals="4" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_10">0.0011</rr:OtherExpensesOverAssets>
  <rr:ManagementFeesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" unitRef="pure" decimals="4" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_6">0.0006</rr:ManagementFeesOverAssets>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_42">2011-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:AnnualReturn2009 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" unitRef="pure" decimals="4" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_31">0.0057</rr:AnnualReturn2009>
  <rr:YearToDateReturnLabel contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_34">YTD</rr:YearToDateReturnLabel>
  <rr:Component2OtherExpensesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" unitRef="pure" decimals="4" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_9">0.0002</rr:Component2OtherExpensesOverAssets>
  <rr:AnnualReturn2011 contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" unitRef="pure" decimals="4" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_33">0.0014</rr:AnnualReturn2011>
  <rr:DistributionAndService12b1FeesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" unitRef="pure" decimals="4" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_7">0.0000</rr:DistributionAndService12b1FeesOverAssets>
  <rr:ExpensesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" unitRef="pure" decimals="4" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_11">0.0017</rr:ExpensesOverAssets>
  <rr:AverageAnnualReturnSinceInception contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" unitRef="pure" decimals="4" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_46">0.0046</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnInceptionDate contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_47">2008-09-29</rr:AverageAnnualReturnInceptionDate>
  <rr:BarChartYearToDateReturn contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979759_602238x-9979757_602488x-9979765" unitRef="pure" decimals="4" id="id_446113_16B7F18F-53E4-40D6-8FD2-797DB9C27F3A_1002_35">0.0017</rr:BarChartYearToDateReturn>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_59">&lt;div style="display:none"&gt;~ http://www.pfmfunds.com/role/ExpenseExample_S000007237Member column dei_LegalEntityAxis compact * column rr_ProspectusShareClassAxis compact * row primary compact *  ~&lt;/div&gt;</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:BarChartTableTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_58">&lt;div style="display:none"&gt;~ http://www.pfmfunds.com/role/BarChartData_S000007237Member column dei_LegalEntityAxis compact * column rr_ProspectusShareClassAxis compact * row primary compact *  ~&lt;/div&gt;</rr:BarChartTableTextBlock>
  <rr:ObjectivePrimaryTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_2">&lt;tt&gt;To provide high current income consistent with stability, safety of principal,&lt;br /&gt;and liquidity, and to maintain a stable net asset value of $1.00 per share.&lt;/tt&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_14">&lt;tt&gt;This example is intended to help you compare the cost of investing in Government&lt;br /&gt;Series with the cost of investing in other mutual funds and share classes. The&lt;br /&gt;example assumes that you invest $10,000 for the time periods indicated and then&lt;br /&gt;redeem all of your shares at the end of the period. The example also assumes&lt;br /&gt;that you earn a 5% return each year on your investment and that the operating&lt;br /&gt;expenses remain the same.&lt;/tt&gt;</rr:ExpenseExampleNarrativeTextBlock>
  <rr:StrategyNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_21">&lt;tt&gt;Government Series invests exclusively in the following high quality, short-term&lt;br /&gt;money market instruments:&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#xB7; US Government and agency obligations&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#xB7; Obligations issued by entities with liquidity support from the US Government or&lt;br /&gt;&amp;#xA0;&amp;#xA0;its agencies or instrumentalities&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#xB7; Repurchase agreements involving these obligations&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#xB7; Other money market mutual funds that invest exclusively in these types of&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;obligations&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt;Government Series maintains a dollar-weighted average portfolio maturity of no&lt;br /&gt;more than 60 days and a dollar-weighted life (final maturity, disregarding&lt;br /&gt;interest rate adjustments) of no more than 120 days.&lt;/tt&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskReturnHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_0">Government Series</rr:RiskReturnHeading>
  <rr:ExpenseExampleHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_13">Expense Example</rr:ExpenseExampleHeading>
  <rr:ObjectiveHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_1">Investment Objective</rr:ObjectiveHeading>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_30">Past performance may not indicate future results and yields may vary.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:RiskLoseMoney contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_24">Although Government Series seeks to preserve the value of your investment
at $1.00 per share, it is possible to lose money by investing in Government
Series.</rr:RiskLoseMoney>
  <rr:RiskHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_22">Principal Investment Risks</rr:RiskHeading>
  <rr:ExpenseExampleByYearCaption contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_15">Although your actual costs may be higher or lower, based on these assumptions, your costs would be:</rr:ExpenseExampleByYearCaption>
  <rr:BarChartHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_31">Year-by-Year Total Return (shown for calendar years) (%)</rr:BarChartHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_26">Performance</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_28">The following information illustrates how Government Series has performed over time.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:BarChartClosingTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_51">&lt;tt&gt;Highest Quarter Return: Q3 2007&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;1.29%&lt;br /&gt;Lowest Quarter Return: Q3 2011&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;0.01%&lt;br /&gt;YTD as of 9/30/12 (not annualized):&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;0.03%&lt;/tt&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceAvailabilityPhone contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_29">(800) 338-3383</rr:PerformanceAvailabilityPhone>
  <rr:OperatingExpensesCaption contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_5">Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
  <rr:AverageAnnualReturnCaption contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_52">Average Annual Total Return (%) (for the periods ended December 31, 2011)</rr:AverageAnnualReturnCaption>
  <rr:RiskNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_23">&lt;tt&gt;Although Government Series invests exclusively in high-quality securities, an&lt;br /&gt;investment in Government Series - like an investment in any money market fund -&lt;br /&gt;is subject to certain risks, such as:&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &amp;#xB7; Interest Rate Risk&amp;#xA0;&amp;#xA0;&amp;#xA0;When short-term interest rates fall, Government Series&apos;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;yield is likely to fall. When interest rates rise, the values of obligations&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;held by Government Series may decline. If the rise is sharp or unexpected,&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;Government Series&apos; share price could fall.&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &lt;br /&gt; &amp;#xB7; Credit Risk&amp;#xA0;&amp;#xA0;&amp;#xA0;The issuer of an obligation could fail to pay interest and&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;principal in a timely manner. The credit quality of Government Series&apos; holdings&lt;br /&gt;&amp;#xA0;&amp;#xA0;could change rapidly in certain markets, and the default or decline in credit&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;quality of even a single holding could cause Government Series&apos; share price to &lt;br /&gt;&amp;#xA0;&amp;#xA0;fall.&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt; &lt;br /&gt; &amp;#xB7; Management Risk&amp;#xA0;&amp;#xA0;&amp;#xA0;Performance could be hurt by decisions made by the investment&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;adviser, such as choice of investments and timing of buy/sell decisions.&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&amp;#xA0;&lt;br /&gt;&amp;#xA0;&amp;#xA0;&lt;br /&gt;An investment in Government Series is not insured or guaranteed by the Federal&lt;br /&gt;Deposit Insurance Corporation or any other government agency. Although Government &lt;br /&gt;Series seeks to preserve the value of your investment at $1.00 per share, it is &lt;br /&gt;possible to lose money by investing in Government Series.&lt;/tt&gt;</rr:RiskNarrativeTextBlock>
  <rr:ExpenseHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_3">Fees and Expenses</rr:ExpenseHeading>
  <rr:StrategyHeading contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_20">Principal Investment Strategies</rr:StrategyHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_27">&lt;tt&gt;The following information illustrates how Government Series has performed over&lt;br /&gt;time. For current yield information, call (800) 338-3383. Returns for other&lt;br /&gt;classes were different and are not shown here. Past performance may not indicate&lt;br /&gt;future results and yields may vary.&lt;/tt&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_4">&lt;tt&gt;These are the fees and expenses you may pay when you buy and hold shares of&lt;br /&gt;Government Series.&lt;/tt&gt;</rr:ExpenseNarrativeTextBlock>
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  <rr:PerformanceTableTextBlock contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_61">&lt;div style="display:none"&gt;~ http://www.pfmfunds.com/role/PerformanceTableData_S000007237Member column dei_LegalEntityAxis compact * column rr_ProspectusShareClassAxis compact * row primary compact *  ~&lt;/div&gt;</rr:PerformanceTableTextBlock>
  <rr:RiskNotInsuredDepositoryInstitution contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1001_25">An investment in Government Series is not insured or guaranteed by the Federal
Deposit Insurance Corporation or any other government agency.</rr:RiskNotInsuredDepositoryInstitution>
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  <rr:OtherExpensesOverAssets contextRef="eol_0001144204-12-058636_STD_1_20121031_0_602228x-9979760_602238x-9979758_602488x-9979767" unitRef="pure" decimals="4" id="id_446113_985401B5-9F4E-4922-A3BB-6F3319BBDDB5_1002_10">0.0013</rr:OtherExpensesOverAssets>
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    <xbrll:footnote xlink:label="footnote_93603199" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">Government Series inception: 1/5/1999</xbrll:footnote>
    <xbrll:footnote xlink:label="footnote_93603200" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">Institutional Class Shares inception: 9/29/08</xbrll:footnote>
    <xbrll:footnote xlink:label="footnote_93603201" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">Independent Schools Class Shares inception: 5/11/09</xbrll:footnote>
    <xbrll:footnote xlink:label="footnote_93603202" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">The Adviser will waive a portion of its investment advisory, administration or transfer agency fees through October 31, 2013 pursuant to a contractual expense limitation agreement in order to limit ordinary operating expenses of the Independent Schools Class to not more than 0.26% of average daily net assets. This limitation does not apply to any taxes, interest, brokerage commissions or extraordinary expenses that, if incurred, would increase the overall expense ratio.</xbrll:footnote>
    <xbrll:footnote xlink:label="footnote_93603203" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">The Adviser will waive a portion of investment advisory, administration or transfer agency fees through October 31, 2013 pursuant to a contractual expense limitation agreement in order to limit ordinary operating expenses of the Colorado Investors Class to not more than 0.12% of average daily net assets. This limitation does not apply to any taxes, interest, brokerage commissions or extraordinary expenses that, if incurred, would increase the overall expense ratio.</xbrll:footnote>
    <xbrll:footnote xlink:label="footnote_93603204" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">SNAP Fund Class Shares inception: 7/24/1995</xbrll:footnote>
    <xbrll:footnote xlink:label="footnote_93603205" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">The Adviser may voluntarily waive a portion of transfer agent fees payable by the SNAP Fund Class of shares. It currently expects to waive a portion of its investment advisory, administration or transfer agency fees in order that such fees do not exceed an aggregate effective rate of 0.09% of the average daily net assets of the SNAP Fund Class up to $1 billion, 0.065% of the average daily net assets of the SNAP Fund Class from $1 billion to $3 billion and 0.05% of the average daily net assets of the SNAP Fund Class in excess of $3 billion on an annualized basis.</xbrll:footnote>
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