2.4.0.80009 - Document - Pear Tree Polaris Foreign Value Small Cap Fund Summary {Unlabeled}falsefalsetrue1false falsefalseAsOf2013-08-01_custom_S000021993Memberhttp://www.sec.gov/CIK0000722885duration2013-08-01T00:00:002013-08-01T00:00:001false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00Pear Tree Polaris Foreign Value Small Cap Fundfalsefalsefalse1false truefalseAsOf2013-08-01_custom_S000021993Memberhttp://www.sec.gov/CIK0000722885duration2013-08-01T00:00:002013-08-01T00:00:00falsefalsePTF_S000021993Memberdei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldiPTF_S000021993Memberdei_LegalEntityAxisexplicitMembernanafalse0Pear Tree Polaris Foreign Value Small Cap Fund2false 4rr_ObjectiveHeadingrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Investment Objective:falsefalsefalsexbrli:stringItemTypestringInvestment Objectives/Goals. Disclose the Fund's investment objectives or goals. A Fund also may identify its type or category (e.g., that it is a Money Market Fund or a balanced fund).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 2 -Subsection a false0Objective [Heading]3false 4rr_ObjectivePrimaryTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Long-term growth of capital and income.falsefalsefalsenonnum:textBlockItemTypenaInvestment Objectives/Goals. Disclose the Fund's investment objectives or goals. A Fund also may identify its type or category (e.g., that it is a Money Market Fund or a balanced fund).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 2 -Subsection a false0Objective, Primary [Text Block]4false 4rr_ExpenseHeadingrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Fee Table and Expenses of Foreign Value Small Cap Fundfalsefalsefalsexbrli:stringItemTypestringRisk/Return Summary Fee Table Includes the following information, in plain English under rule 421(d) under the Securities Act, after Item 2 Fees and expenses of the Fund This table describes the fees and expenses that you may pay if you buy and hold shared of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $[_____] in [name of fund family] funds. Shareholder Fees (fees paid directly from your investment) Example This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be You would pay the following expenses if you did not redeem your shares The Example does not reflect sales charges (loads) on reinvested dividends [and other distributions]. If these sales charges (loads) were included, your costs would be higher. Portfolio Turnover The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover may indicate higher transaction costs. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was __% of the average value of its whole portfolio. Instructions. A.3.instructions.6 New Funds. For purposes of this Item, a "New Fund" is a Fund that does not include in Form N-1A financial statements reporting operating results or that includes financial statements for the Fund's initial fiscal year reporting operating results for a period of 6 months or less. The following Instructions apply to New Funds.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 1 -Subparagraph d false0Expense [Heading]5false 4rr_ExpenseNarrativeTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00This table describes the fees and expenses that you may pay if you buy and hold shares of Foreign Value Small Cap Fund.falsefalsefalsenonnum:textBlockItemTypenaThis table describes the fees and expenses that you may pay if you buy and hold shared of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $[_____] in [name of fund family] funds. Include the narrative explanations in the order indicated. A Fund may modify the narrative explanations if the explanation contains comparable information to that shown. The narrative explanation regarding sales charge discounts is only required by a Fund that offers such discounts and should specify the minimum level of investment required to qualify for a discount. Modify the narrative explanation to state that Fund shares are sold on a national securities exchange at the end of the time periods indicated, and that brokerage commissions for buying and selling Fund shares through a broker are not reflected.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 1 -Subparagraph b false0Expense Narrative [Text Block]6false 4rr_OperatingExpensesCaptionrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)falsefalsefalsexbrli:stringItemTypestringAnnual Fund Operating Expenses (ongoing expenses that you pay each year as a percentage of the value of your investment)Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 7 false0Operating Expenses Caption [Text]7false 4rr_AnnualFundOperatingExpensesTableTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div style="display: none">~ http://xbrl.sec.gov/rr/role/OperatingExpensesData column period compact * column dei_LegalEntityAxis compact PTF_S000021993Member column rr_ProspectusShareClassAxis compact * row primary compact * ~</div>falsefalse<div style="display: none">~ http://xbrl.sec.gov/rr/role/OperatingExpensesData column period compact * column dei_LegalEntityAxis compact PTF_S000021993Member column rr_ProspectusShareClassAxis compact * row primary compact * ~</div>falsehttp://xbrl.sec.gov/rr/role/OperatingExpensesData020020 - Schedule - Annual Fund Operating Expensestruefalsefalse1falseColumnperiodPeriod*Columndei_LegalEntityAxisAxisPTF_S000021993MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*duration2013-08-01T00:00:002013-08-01T00:00:00falsefalsePear Tree Polaris Foreign Value Small Cap Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldiPTF_S000021993Memberdei_LegalEntityAxisexplicitMemberfalsefalseOrdinary Sharesrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldiPTF_C000063163Memberrr_ProspectusShareClassAxisexplicitMemberPear Tree Polaris Foreign Value Small Cap FundOrdinary SharesRatioStandardhttp://www.xbrl.org/2003/instancepurexbrli0Standard0 USDfalsefalseduration2013-08-01T00:00:002013-08-01T00:00:00$2falseColumnperiodPeriod*Columndei_LegalEntityAxisAxisPTF_S000021993MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*duration2013-08-01T00:00:002013-08-01T00:00:00falsefalsePear Tree Polaris Foreign Value Small Cap Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldiPTF_S000021993Memberdei_LegalEntityAxisexplicitMemberfalsefalseInstitutional Sharesrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldiPTF_C000063164Memberrr_ProspectusShareClassAxisexplicitMemberPear Tree Polaris Foreign Value Small Cap FundInstitutional SharesRatioStandardhttp://www.xbrl.org/2003/instancepurexbrli0Standard0 USDfalsefalseduration2013-08-01T00:00:002013-08-01T00:00:00$1falseRowprimaryElement*3false 2rr_ManagementFeesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalserr:NonNegativePure4TypepureManagement Fees include investment advisory fees (including any fees based on the Fund's performance), any other management fees payable to the investment adviser or its affiliates, and administrative fees payable to the investment adviser or its affiliates that are not included as "Other Expenses."Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 3 -Subparagraph a false0Management Fees 0rr_ManagementFeesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.01000.0100falsefalsefalse2truetruetrue0.01000.0100falsefalsefalserr:NonNegativePure4TypepureManagement Fees include investment advisory fees (including any fees based on the Fund's performance), any other management fees payable to the investment adviser or its affiliates, and administrative fees payable to the investment adviser or its affiliates that are not included as "Other Expenses."Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 3 -Subparagraph a false0Management Fees2falseRowprimaryElement*4false 2rr_DistributionAndService12b1FeesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalserr:NonNegativePure4TypepureDistribution [and/or Service] (12b-1) Fees" include all distribution or other expenses incurred during the most recent fiscal year under a plan adopted pursuant to rule 12b-1 [17 CFR 270.12b-1]. Under an appropriate caption or a subcaption of "Other Expenses," disclose the amount of any distribution or similar expenses deducted from the Fund's assets other than pursuant to a rule 12b-1 plan.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 9 false0Distribution (12b-1) Fees 0rr_DistributionAndService12b1FeesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00250.0025falsefalsefalse2truetruetrue00falsefalsefalserr:NonNegativePure4TypepureDistribution [and/or Service] (12b-1) Fees" include all distribution or other expenses incurred during the most recent fiscal year under a plan adopted pursuant to rule 12b-1 [17 CFR 270.12b-1]. Under an appropriate caption or a subcaption of "Other Expenses," disclose the amount of any distribution or similar expenses deducted from the Fund's assets other than pursuant to a rule 12b-1 plan.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 9 false0Distribution (12b-1) Fees3falseRowprimaryElement*5false 2rr_OtherExpensesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalserr:NonNegativePure4Typepure"Other Expenses" include all expenses not otherwise disclosed in the table that are deducted from the Fund's assets or charged to all shareholder accounts. The amount of expenses deducted from the Fund's assets are the amounts shown as expenses in the Fund's statement of operations (including increases resulting from complying with paragraph 2(g) of rule 6-07 of Regulation S-X [17 CFR 210.6-07]). "Other Expenses" do not include extraordinary expenses as determined under generally accepted accounting principles (see Accounting Principles Board Opinion No. 30). If extraordinary expenses were incurred that materially affected the Fund's "Other Expenses," disclose in a footnote to the table what "Other Expenses" would have been had the extraordinary expenses been included.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 3 -Subparagraph c -Clause i false0Other Expenses 0rr_OtherExpensesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00410.0041falsefalsefalse2truetruetrue0.00410.0041falsefalsefalserr:NonNegativePure4Typepure"Other Expenses" include all expenses not otherwise disclosed in the table that are deducted from the Fund's assets or charged to all shareholder accounts. The amount of expenses deducted from the Fund's assets are the amounts shown as expenses in the Fund's statement of operations (including increases resulting from complying with paragraph 2(g) of rule 6-07 of Regulation S-X [17 CFR 210.6-07]). "Other Expenses" do not include extraordinary expenses as determined under generally accepted accounting principles (see Accounting Principles Board Opinion No. 30). If extraordinary expenses were incurred that materially affected the Fund's "Other Expenses," disclose in a footnote to the table what "Other Expenses" would have been had the extraordinary expenses been included.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 3 -Subparagraph c -Clause i false0Other Expenses4falseRowprimaryElement*7false 2rr_ExpensesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalserr:NonNegativePure4TypepureTotal Annual Fund Operating Expenses. If the Fund is a Feeder Fund, reflect the aggregate expenses of the Feeder Fund and the Master Fund in a single fee table using the captions provided. In a footnote to the fee table, state that the table and Example reflect the expenses of both the Feeder and Master Funds. If the prospectus offers more than one Class of a Multiple Class Fund or more than one Feeder Fund that invests in the same Master Fund, provide a separate response for each Class or Feeder Fund. Base the percentages of "Annual Fund Operating Expenses" on amounts incurred during the Fund's most recent fiscal year, but include in expenses amounts that would have been incurred absent expense reimbursement or fee waiver arrangements. If the Fund has changed its fiscal year and, as a result, the most recent fiscal year is less than three months, use the fiscal year prior to the most recent fiscal year as the basis for determining "Annual Fund Operating Expenses."Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 3 -Subparagraph d false0Total Annual Fund Operating Expenses 0rr_ExpensesOverAssetsrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.01660.0166falsefalsefalse2truetruetrue0.01410.0141falsefalsefalserr:NonNegativePure4TypepureTotal Annual Fund Operating Expenses. If the Fund is a Feeder Fund, reflect the aggregate expenses of the Feeder Fund and the Master Fund in a single fee table using the captions provided. In a footnote to the fee table, state that the table and Example reflect the expenses of both the Feeder and Master Funds. If the prospectus offers more than one Class of a Multiple Class Fund or more than one Feeder Fund that invests in the same Master Fund, provide a separate response for each Class or Feeder Fund. Base the percentages of "Annual Fund Operating Expenses" on amounts incurred during the Fund's most recent fiscal year, but include in expenses amounts that would have been incurred absent expense reimbursement or fee waiver arrangements. If the Fund has changed its fiscal year and, as a result, the most recent fiscal year is less than three months, use the fiscal year prior to the most recent fiscal year as the basis for determining "Annual Fund Operating Expenses."Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 3 -Subparagraph d false0Total Annual Fund Operating ExpensesfalseAnnual Fund Operating Expenses Pear Tree Polaris Foreign Value Small Cap FundUnKnownUnKnownUnKnownUnKnownfalsefalsefalseSheet2471227020ColumnperiodPeriod*Columndei_LegalEntityAxisAxisPTF_S000021993MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*RowprimaryElement*falsenonnum:textBlockItemTypenaContains a command for the SEC Viewer for the role corresponding to OperatingExpensesData.No definition available.false0Annual Fund Operating Expenses [Table]8false 4rr_ExpenseExampleHeadingrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Examplefalsefalsefalsexbrli:stringItemTypestringHeading for Expense Example.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 4 false0Expense Example [Heading]9false 4rr_ExpenseExampleNarrativeTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00This example is intended to help you compare the cost of investing in Foreign Value Small Cap Fund with the cost of investing in other mutual funds.  The Example assumes that you invest $10,000 in Foreign Value Small Cap Fund for the time periods indicated and then redeem all of your shares at the end of those periods.  The Example also assumes that your investment has a 5 percent return each year and that Foreign Value Small Cap Funds operating expenses remain the same as set forth in the table above.  Although your actual costs may be higher or lower, based on these assumptions your costs would be:falsefalsefalsenonnum:textBlockItemTypenaThe Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection example -Paragraph 1 -Subparagraph 1 false0Expense Example Narrative [Text Block]10false 4rr_ExpenseExampleWithRedemptionTableTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div style="display: none">~ http://xbrl.sec.gov/rr/role/ExpenseExample column period compact * column dei_LegalEntityAxis compact PTF_S000021993Member column rr_ProspectusShareClassAxis compact * row primary compact * ~</div>falsefalse<div style="display: none">~ http://xbrl.sec.gov/rr/role/ExpenseExample column period compact * column dei_LegalEntityAxis compact PTF_S000021993Member column rr_ProspectusShareClassAxis compact * row primary compact * ~</div>truehttp://xbrl.sec.gov/rr/role/ExpenseExample020030 - Schedule - Expense Example {Transposed}truefalsefalse1falseColumnprimaryElement*3false 2rr_ExpenseExampleYear01rr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabelrr:NonNegativeMonetaryTypemonetaryThe Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 4 false21 Year USDfalsefalse$2falseColumnprimaryElement*4false 2rr_ExpenseExampleYear03rr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabelrr:NonNegativeMonetaryTypemonetaryThe Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection example -Paragraph 1 -Subparagraph 2 false23 Years USDfalsefalse$3falseColumnprimaryElement*5false 2rr_ExpenseExampleYear05rr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabelrr:NonNegativeMonetaryTypemonetaryThe Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection example -Paragraph 1 -Subparagraph 2 false25 Years USDfalsefalse$4falseColumnprimaryElement*6false 2rr_ExpenseExampleYear10rr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalserr:NonNegativeMonetaryTypemonetaryThe Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection example -Paragraph 1 -Subparagraph 2 false2Expense Example, With Redemption, 10 Years USDfalsefalse$1falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisPTF_S000021993MemberRowrr_ProspectusShareClassAxisAxis*RowunitUnit*duration2013-08-01T00:00:002013-08-01T00:00:00falsefalsePear Tree Polaris Foreign Value Small Cap Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldiPTF_S000021993Memberdei_LegalEntityAxisexplicitMemberfalsefalseOrdinary Sharesrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldiPTF_C000063163Memberrr_ProspectusShareClassAxisexplicitMemberPear Tree Polaris Foreign Value Small Cap FundOrdinary SharesUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170 0truefalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue169169falsefalsefalse2truefalsetrue523523falsefalsefalse3truefalsetrue902902falsefalsefalse4truefalsetrue19651965falsefalsefalsenanafalse0Ordinary Shares2falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisPTF_S000021993MemberRowrr_ProspectusShareClassAxisAxis*RowunitUnit*duration2013-08-01T00:00:002013-08-01T00:00:00falsefalsePear Tree Polaris Foreign Value Small Cap Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldiPTF_S000021993Memberdei_LegalEntityAxisexplicitMemberfalsefalseInstitutional Sharesrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldiPTF_C000063164Memberrr_ProspectusShareClassAxisexplicitMemberPear Tree Polaris Foreign Value Small Cap FundInstitutional SharesUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170 0truefalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue144144falsefalsefalse2truefalsetrue446446falsefalsefalse3truefalsetrue771771falsefalsefalse4truefalsetrue16911691falsefalsefalsenanafalse0Institutional SharesfalseExpense Example Pear Tree Polaris Foreign Value Small Cap Fund (USD $)UnKnownUnKnownUnKnownUnKnownfalsefalsefalseSheet426442028ColumnprimaryElement*RowperiodPeriod*Rowdei_LegalEntityAxisAxisPTF_S000021993MemberRowrr_ProspectusShareClassAxisAxis*RowunitUnit*falsenonnum:textBlockItemTypenaContains a command for the SEC Viewer for the role corresponding to ExpenseExample.No definition available.false0Expense Example, With Redemption [Table]11false 4rr_PortfolioTurnoverHeadingrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Portfolio Turnoverfalsefalsefalsexbrli:stringItemTypestringDisclose the portfolio turnover rate provided in response to Item 14(a) for the most recent fiscal year (or for such shorter period as the Fund has been in operation). Disclose the period for which the information is provided if less than a full fiscal year. A Fund that is a Money Market Fund may omit the portfolio turnover information required by this Item.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection instructions -Paragraph 5 false0Portfolio Turnover [Heading]12false 4rr_PortfolioTurnoverTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Foreign Value Small Cap Fund pays transaction costs, such as commissions, when it buys and sells securities (or turns over its portfolio).  A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account.  These costs, which are not reflected in annual fund operating expenses or in the example, affect Foreign Value Small Cap Funds performance.  During the most recent fiscal year, Foreign Value Small Cap Funds portfolio turnover rate was 9 percent of the average value of its portfolio.falsefalsefalsenonnum:textBlockItemTypenaDisclose the portfolio turnover rate provided in response to Item 14(a) for the most recent fiscal year (or for such shorter period as the Fund has been in operation). Disclose the period for which the information is provided if less than a full fiscal year. A Fund that is a Money Market Fund may omit the portfolio turnover information required by this Item.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Subsection example -Paragraph 3 false0Portfolio Turnover [Text Block]13false 4rr_StrategyHeadingrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Principal Investment Strategiesfalsefalsefalsexbrli:stringItemTypestringPrincipal investment strategies of the Fund. Summarize how the Fund intends to achieve its investment objectives by identifying the Fund's principal investment strategies (including the type or types of securities in which the Fund invests or will invest principally) and any policy to concentrate in securities of issuers in a particular industry or group of industries.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection a false0Strategy [Heading]14false 4rr_StrategyNarrativeTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Under normal market conditions, Foreign Value Small Cap Fund invests at least 80 percent of its net assets (plus borrowings for investment purposes) in equity securities, warrants, and rights derivative of or convertible into common stocks, in each case issued by small cap foreign markets issuers.  Foreign Value Small Cap Fund defines a foreign markets issuer to be an issuer that derives at least 50 percent of its gross revenues or profits from goods or services produced in non-U.S. markets or from sales made in non-U.S. markets.  Foreign Value Small Cap Fund generally will be invested in issuers in ten or more foreign countries.  Foreign Value Small Cap Fund considers a small-cap company to be a company having a market capitalization at time of purchase between $50 million to $2 billion.   Foreign Value Small Cap Funds sub-adviser uses a three-step investment decision making process, with the objective to identify companies with the most undervalued streams of sustainable cash flow.  First, it employs proprietary quantitative investment technology to evaluate data, such as cash flow and interest rates, to produce a ranking of country and industry sectors.  Second, it uses traditional valuation criteria to regularly screen a database of more than 16,000 companies worldwide to identify a pool of approximately 250 or more securities with the greatest potential for undervalued streams of sustainable cash flow or assets.  Third, the sub-adviser conducts rigorous fundamental research on the pool of companies identified by the first two steps of the investment process. The sub-adviser also maintains a watch-list of companies which may be used if the valuation of a company held in Foreign Value Small Cap Funds portfolio falls below established limits.   Foreign Value Small Cap Funds sub-adviser may utilize options. The extent of the sub-advisers use of options may vary over time based on the sub-advisers assessment of market conditions and other factors.  Foreign Value Small Cap Fund may also buy and sell forward foreign currency exchange contracts in connection with its investments.   Foreign Value Small Cap Fund may invest in other derivatives, that is, a security or instrument whose value is determined by reference to the value or the change in value of one or more securities, currencies, indices or other financial instruments.  Foreign Value Small Cap Fund also may lend its securities.  Foreign Value Small Cap Fund may hold cash, or it may manage its cash by investing in cash equivalents and money market funds.  Foreign Value Small Cap Fund also may take temporary defensive positions that are inconsistent with its principal investment strategies.falsefalsefalsenonnum:textBlockItemTypenaPrincipal investment strategies of the Fund. Summarize how the Fund intends to achieve its investment objectives by identifying the Fund's principal investment strategies (including the type or types of securities in which the Fund invests or will invest principally) and any policy to concentrate in securities of issuers in a particular industry or group of industries.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection a false0Strategy Narrative [Text Block]15false 4rr_RiskHeadingrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Principal Investment Risksfalsefalsefalsexbrli:stringItemTypestringNarrative Risk Disclosure.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 1 false0Risk [Heading]16false 4rr_RiskNarrativeTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00It is possible to lose money by investing in Foreign Value Small Cap Fund.  An investment in Foreign Value Small Cap Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.   Market, Industry and Specific Holdings. The share price of Foreign Value Small Cap Fund may fall because of weakness in the stock markets, generally, weaknesses with respect to a particular industry in which Foreign Value Small Cap Fund has significant holdings, or weaknesses associated with one or more specific companies in which Foreign Value Small Cap Fund may have substantial investments.   Foreign Investing.  Foreign Value Small Cap Funds investments in foreign securities (including ADRs) may be adversely affected by political and economic conditions overseas, reduced liquidity, or decreases in foreign currency values relative to the U.S. dollar.  These risks are especially acute for emerging markets securities.   Value Stock Investing.  A value investment style periodically comes into and falls out of favor with investors.  Value stocks generally carry the risk that the market will not recognize their intrinsic value or that they are actually appropriately priced at a low level.   Small-Capitalization Securities.  Investments in small-capitalization companies typically present greater risks than investments in larger companies and, as a result, the performance of Foreign Value Small Cap Fund may be more volatile than a fund that invests only in large- and mid-cap stocks.   Liquidity Risk.  Foreign Value Small Cap Fund may not be able to sell some or all of its securities at desired prices or may be unable to sell the securities at all.   Active Management Risk.  The sub-advisers judgments about the attractiveness, value, or potential appreciation of Foreign Value Small Cap Funds investments may prove to be incorrect.   Non-Diversification.  Foreign Value Small Cap Fund is non-diversified, which means that it may invest a higher percentage of its assets in a smaller number of issuers.  As a result, a decline in the value of the securities of one issuer could have a significant negative effect on Foreign Value Small Cap Fund.   Sector. Foreign Value Small Cap Fund may have significant investments in one or more specific industry sectors, subjecting it to risks greater than general market risk.   Securities Lending.  Securities lending involves two primary risks: investment risk and borrower default risk. Investment risk is the risk that Foreign Value Small Cap Fund will lose money from the investment of the cash collateral received from the borrower. Borrower default risk is the risk that Foreign Value Small Cap Fund will lose money due to the failure of a borrower to return a borrowed security in a timely manner.   Derivatives. Foreign Value Small Cap Funds investments in currency futures, options and other derivative instruments are subject to a number of risks, such as counterparty risk, the risk of mispricing or improper valuation, and the risk that the value of the instrument may not increase or decrease as expected.   Please refer to Fund Objectives, Strategies and Risks in the Prospectus for further details.falsefalsefalsenonnum:textBlockItemTypenaNarrative Risk Disclosure. A Fund may, in responding to this Item, describe the types of investors for whom the Fund is intended or the types of investment goals that may be consistent with an investment in the Fund.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 1 -Subparagraph i -Clause instruction false0Risk Narrative [Text Block]17false 4rr_BarChartAndPerformanceTableHeadingrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Performancefalsefalsefalsexbrli:stringItemTypestringRisk/Return Bar Chart and Table.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 false0Bar Chart and Performance Table [Heading]18false 4rr_PerformanceNarrativeTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00The following bar charts and tables indicate some of the risks of investing in Foreign Value Small Cap Fund by showing changes in Foreign Value Small Cap Funds performance over time. The tables also compare Foreign Value Small Cap Funds performance to a broad measure of market performance that reflects the type of securities in which Foreign Value Small Cap Fund invests. Of course, past performance does not necessarily indicate how Foreign Value Small Cap Fund will perform (before and after taxes) in the future.  Updated performance information is available at www.peartreefunds.com.falsefalsefalsenonnum:textBlockItemTypenaRisk/Return Bar Chart and Table.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 false0Performance Narrative [Text Block]19false 4rr_BarChartNarrativeTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Annual Return Ordinary Class (Calendar year ended December 31) Returns for Institutional Shares will differ from the Ordinary Share returns due to differences in expenses between the classes.falsefalsefalsenonnum:textBlockItemTypenaProvide a brief explanation of how the information illustrates the variability of the Fund's returns (e.g., by stating that the information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year and by showing how the Fund's average annual returns for 1, 5, and 10 years compare with those of a broad measure of market performance). Provide a statement to the effect that the Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 -Subparagraph i false0Bar Chart Narrative [Text Block]20false 4rr_BarChartTableTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div style="display: none">~ http://xbrl.sec.gov/rr/role/BarChartData column period compact * column dei_LegalEntityAxis compact PTF_S000021993Member column rr_ProspectusShareClassAxis compact * row primary compact * ~</div>falsefalseBarChart5.jpg<div style="display: none">~ http://xbrl.sec.gov/rr/role/BarChartData column period compact * column dei_LegalEntityAxis compact PTF_S000021993Member column rr_ProspectusShareClassAxis compact * row primary compact * ~</div>falsehttp://xbrl.sec.gov/rr/role/BarChartData020050 - Schedule - Annual Total Returnstruefalsefalse1falseColumnperiodPeriod*Columndei_LegalEntityAxisAxisPTF_S000021993MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*duration2013-08-01T00:00:002013-08-01T00:00:00falsefalsePear Tree Polaris Foreign Value Small Cap Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldiPTF_S000021993Memberdei_LegalEntityAxisexplicitMemberfalsefalseOrdinary Sharesrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldiPTF_C000063163Memberrr_ProspectusShareClassAxisexplicitMemberPear Tree Polaris Foreign Value Small Cap FundOrdinary SharesRatioStandardhttp://www.xbrl.org/2003/instancepurexbrli0Standard0 USDfalsefalseduration2013-08-01T00:00:002013-08-01T00:00:00$1falseRowprimaryElement*9false9false 2rr_AnnualReturn2009rr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.33350.3335falsefalsefalse2truetruefalse0.20750.2075falsefalsefalse3truetruefalse0.70370.7037falsefalsefalse4truetruefalse0.58040.5804falsefalsefalse5truetruefalse0.83130.8313falsefalsefalsexbrli:pureItemTypepureIf the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. 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The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 -Subparagraph instructions -Clause 3 -Exhibit a false0Annual Return 2009 2rr_AnnualReturn2009rr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalsexbrli:pureItemTypepureIf the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. 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The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 -Subparagraph instructions -Clause 3 -Exhibit a false0Annual Return 2009 0rr_AnnualReturn2009rr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.83130.8313falsefalsefalsexbrli:pureItemTypepureIf the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 -Subparagraph instructions -Clause 3 -Exhibit a false0Annual Return 20092falseRowprimaryElement*10false10false 2rr_AnnualReturn2010rr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.26930.2693falsefalsefalse2truetruefalse0.07100.0710falsefalsefalse3truetruefalse0.19760.1976falsefalsefalse4truetruefalse0.20010.2001falsefalsefalse5truetruefalse0.20700.2070falsefalsefalsexbrli:pureItemTypepureIf the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 -Subparagraph ii false0Annual Return 2010 2rr_AnnualReturn2010rr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalsexbrli:pureItemTypepureIf the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 -Subparagraph ii false0Annual Return 2010 0rr_AnnualReturn2010rr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.20700.2070falsefalsefalsexbrli:pureItemTypepureIf the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 -Subparagraph ii false0Annual Return 20103falseRowprimaryElement*11false11false 2rr_AnnualReturn2011rr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse-0.0453-0.0453falsefalsefalse2truetruefalse0.12780.1278falsefalsefalse3truetruefalse-0.1800-0.1800falsefalsefalse4truetruefalse-0.1552-0.1552falsefalsefalse5truetruefalse-0.2002-0.2002falsefalsefalsexbrli:pureItemTypepureIf the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. 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The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 -Subparagraph instructions -Clause 3 -Exhibit a false0Annual Return 2011 2rr_AnnualReturn2011rr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalsexbrli:pureItemTypepureIf the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 -Subparagraph instructions -Clause 3 -Exhibit a false0Annual Return 2011 0rr_AnnualReturn2011rr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse-0.2002-0.2002falsefalsefalsexbrli:pureItemTypepureIf the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. 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Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 -Subparagraph ii false0Annual Return 2012 0rr_AnnualReturn2012rr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.27110.2711falsefalsefalsexbrli:pureItemTypepureIf the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. 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The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 -Subparagraph ii false0Annual Return 2012falseAnnual Total Returns UnKnownUnKnownUnKnownUnKnownfalsefalsefalseSheet1409110014ColumnperiodPeriod*Columndei_LegalEntityAxisAxisPTF_S000021993MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*RowprimaryElement*falsenonnum:textBlockItemTypenaContains a command for the SEC Viewer for the role corresponding to BarChartData.No definition available.false0Bar Chart [Table]21false 4rr_BarChartClosingTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Calendar year-to-date return of the Ordinary Shares of Foreign Value Small Cap Fund as of 6/30/2013 is 5.21%   <table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"> <tr style="vertical-align: top"> <td style="width: 25%; border-top: black 1pt solid; border-bottom: black 1.5pt solid">Best Quarter:</td> <td style="width: 40%; border-top: black 1pt solid; border-bottom: black 1.5pt solid">Q2 2009</td> <td style="width: 35%; border-top: black 1pt solid; border-bottom: black 1.5pt solid">53.73</td></tr> <tr style="vertical-align: top"> <td style="border-bottom: black 1.5pt solid">Worst Quarter:</td> <td style="border-bottom: black 1.5pt solid">Q4 2008</td> <td style="border-bottom: black 1.5pt solid">-28.49</td></tr> </table>  falsefalsefalsenonnum:textBlockItemTypenaIf the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. 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If a Multiple Class Fund offers a Class in the prospectus that converts into another Class after a stated period, compute average annual total returns in the table by using the returns of the other Class for the period after conversion.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 -Subparagraph iii -Clause 1 -Exhibit 2 false0Label USDfalsefalse$2falseColumnprimaryElement*4false 2rr_AverageAnnualReturnYear01rr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalsexbrli:pureItemTypepureReturn Before Taxes.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 -Subparagraph iii -Clause 1 -Exhibit 2 false01 Year USDfalsefalse$3falseColumnprimaryElement*7false 2rr_AverageAnnualReturnSinceInceptionrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalsexbrli:pureItemTypepureReturn Before Taxes.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 -Subparagraph iii -Clause 1 -Exhibit 2 false0Since Inception USDfalsefalse$4falseColumnprimaryElement*8false 2rr_AverageAnnualReturnInceptionDaterr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalsexbrli:dateItemTypedateReturn Before Taxes.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 -Subparagraph instructions -Clause 4 false0Inception Date USDfalsefalse$1falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisPTF_S000021993MemberRowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2013-08-01T00:00:002013-08-01T00:00:00falsefalsePear Tree Polaris Foreign Value Small Cap Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldiPTF_S000021993Memberdei_LegalEntityAxisexplicitMemberfalsefalseOrdinary 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Distributions3falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisPTF_S000021993MemberRowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2013-08-01T00:00:002013-08-01T00:00:00falsefalsePear Tree Polaris Foreign Value Small Cap Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldiPTF_S000021993Memberdei_LegalEntityAxisexplicitMemberfalsefalseOrdinary Sharesrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldiPTF_C000063163Memberrr_ProspectusShareClassAxisexplicitMemberfalsefalseAfter Taxes on Distributions and Salesrr_PerformanceMeasureAxisxbrldihttp://xbrl.org/2006/xbrldirr_AfterTaxesOnDistributionsAndSalesMemberrr_PerformanceMeasureAxisexplicitMemberPear Tree Polaris Foreign Value Small Cap FundOrdinary SharesAfter Taxes on Distributions and SalesRatioStandardhttp://www.xbrl.org/2003/instancepurexbrli0Standard0 0truefalsefalsefalsefalsefalsefalsefalsefalse1falsetruefalse00After Taxes on Distributions and Salesfalsefalsefalse2truetruetrue0.18220.1822falsefalsefalse3truetruetrue0.03340.0334falsefalsefalse4falsefalsefalse00falsefalsefalsenanafalse0Pear Tree Polaris Foreign Value Small Cap Fund Ordinary Shares After Taxes on Distributions and Sales4falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisPTF_S000021993MemberRowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2013-08-01T00:00:002013-08-01T00:00:00falsefalsePear Tree Polaris Foreign Value Small Cap Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldiPTF_S000021993Memberdei_LegalEntityAxisexplicitMemberfalsefalseInstitutional Sharesrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldiPTF_C000063164Memberrr_ProspectusShareClassAxisexplicitMembertruefalse[PerformanceMeasureDomain]rr_PerformanceMeasureAxisrr_PerformanceMeasureDomainrr_PerformanceMeasureAxisexplicitMemberPear Tree Polaris Foreign Value Small Cap FundInstitutional Shares[PerformanceMeasureDomain]RatioStandardhttp://www.xbrl.org/2003/instancepurexbrli0Standard0 0truefalsefalsefalsefalsefalsefalsefalsefalse1falsetruefalse00Before Taxesfalsefalsefalse2truetruetrue0.27520.2752falsefalsefalse3truetruetrue0.04130.0413falsefalsefalse4falsefalsefalse00falsefalsefalsenanafalse0Pear Tree Polaris Foreign Value Small Cap Fund Institutional Shares5falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisPTF_S000021993MemberRowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2013-08-01T00:00:002013-08-01T00:00:00falsefalsePear Tree Polaris Foreign Value Small Cap Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldiPTF_S000021993Memberdei_LegalEntityAxisexplicitMembertruefalse[ShareClassDomain]rr_ProspectusShareClassAxisrr_ShareClassDomainrr_ProspectusShareClassAxisexplicitMembertruefalse[PerformanceMeasureDomain]rr_PerformanceMeasureAxisrr_PerformanceMeasureDomainrr_PerformanceMeasureAxisexplicitMemberPear Tree Polaris Foreign Value Small Cap Fund[ShareClassDomain][PerformanceMeasureDomain]Standard0 0truefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsetruefalse002008-05-01falsefalsetruenanafalse0Pear Tree Polaris Foreign Value Small Cap Fund6falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisPTF_S000021993MemberRowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2013-08-01T00:00:002013-08-01T00:00:00falsefalsePear Tree Polaris Foreign Value Small Cap Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldiPTF_S000021993Memberdei_LegalEntityAxisexplicitMembertruefalse[ShareClassDomain]rr_ProspectusShareClassAxisrr_ShareClassDomainrr_ProspectusShareClassAxisexplicitMemberfalsefalseS&P EPAC Indexrr_PerformanceMeasureAxisxbrldihttp://xbrl.org/2006/xbrldiPTF_SnPEPACIndexMemberrr_PerformanceMeasureAxisexplicitMemberPear Tree Polaris Foreign Value Small Cap Fund[ShareClassDomain]S&P EPAC IndexRatioStandardhttp://www.xbrl.org/2003/instancepurexbrli0Standard0 0truefalsefalsefalsefalsefalsefalsefalsefalse1falsetruefalse00S&P EPAC Indexfalsefalsefalse2truetruetrue0.20430.2043falsefalsefalse3truetruetrue-0.0045-0.0045falsefalsefalse4falsefalsefalse00falsefalsefalsenanafalse0Pear Tree Polaris Foreign Value Small Cap Fund S&P EPAC Index7falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisPTF_S000021993MemberRowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2013-08-01T00:00:002013-08-01T00:00:00falsefalsePear Tree Polaris Foreign Value Small Cap Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldiPTF_S000021993Memberdei_LegalEntityAxisexplicitMembertruefalse[ShareClassDomain]rr_ProspectusShareClassAxisrr_ShareClassDomainrr_ProspectusShareClassAxisexplicitMemberfalsefalseMSCI ACWI (ex US Small Cap)rr_PerformanceMeasureAxisxbrldihttp://xbrl.org/2006/xbrldiPTF_MSCIACWIMemberrr_PerformanceMeasureAxisexplicitMemberPear Tree Polaris Foreign Value Small Cap Fund[ShareClassDomain]MSCI ACWI (ex US Small Cap)RatioStandardhttp://www.xbrl.org/2003/instancepurexbrli0Standard0 0truefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2truetruetrue0.18960.1896falsefalsefalse3truetruetrue0.01000.0100falsefalsefalse4falsefalsefalse00falsefalsefalsenanafalse0Pear Tree Polaris Foreign Value Small Cap Fund MSCI ACWI (ex US Small Cap)falseAverage Annual Total Returns UnKnownUnKnownUnKnownUnKnownfalsefalsefalseSheet473536670120ColumnprimaryElement*RowperiodPeriod*Rowdei_LegalEntityAxisAxisPTF_S000021993MemberRowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*falsenonnum:textBlockItemTypenaContains a command for the SEC Viewer for the role corresponding to PerformanceTableData.No definition available.false0Performance [Table]23false 4rr_PerformanceTableFootnotesTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Foreign Value Small Cap Fund replaced its benchmark with the MSCI ACWI (ex USA small cap) because it believes the new index represents the emerging markets exposure in the Fund better than the S&P EPAC Index.falsefalsefalsenonnum:textBlockItemTypenaIf the Fund has annual returns for at least one calendar year, provide a table showing the Fund's (A) average annual total return; (B) average annual total return (after taxes on distributions); and (C) average annual total return (after taxes on distributions and redemption). A Money Market Fund should show only the returns described in clause (A) of the preceding sentence. All returns should be shown for 1-, 5-, and 10- calendar year periods ending on the date of the most recently completed calendar year (or for the life of the Fund, if shorter), but only for periods subsequent to the effective date of the Fund's registration statement. The table also should show the returns of an appropriate broad-based securities market index as defined in Instruction 5 to Item 22(b)(7) for the same periods. A Fund that has been in existence for more than 10 years also may include returns for the life of the Fund. A Money Market Fund may provide the Fund's 7-day yield ending on the date of the most recent calendar year or disclose a toll-free (or collect) telephone number that investors can use to obtain the Fund's current 7-day yield. For a Fund (other than a Money Market Fund or a Fund described in General Instruction C.3.(d)(iii)), provide the information in the following table with the specified captions AVERAGE ANNUAL TOTAL RETURNS (For the periods ended December 31, _____)Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 -Subparagraph iii false0Performance Table Footnotes24false 4rr_PerformanceTableClosingTextBlockrr_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00After-tax returns.  After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state or local taxes.  Actual after-tax returns may differ depending on your individual circumstances and may differ from those shown.  The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement.  After-tax returns are shown only for Ordinary Shares and after-tax returns for Institutional Shares may vary.  Actual after-tax returns may differ depending on your individual circumstances.falsefalsefalsenonnum:textBlockItemTypenaIf the Fund has annual returns for at least one calendar year, provide a table showing the Fund's (A) average annual total return; (B) average annual total return (after taxes on distributions); and (C) average annual total return (after taxes on distributions and redemption). A Money Market Fund should show only the returns described in clause (A) of the preceding sentence. All returns should be shown for 1-, 5-, and 10- calendar year periods ending on the date of the most recently completed calendar year (or for the life of the Fund, if shorter), but only for periods subsequent to the effective date of the Fund's registration statement. The table also should show the returns of an appropriate broad-based securities market index as defined in Instruction 5 to Item 22(b)(7) for the same periods. A Fund that has been in existence for more than 10 years also may include returns for the life of the Fund. A Money Market Fund may provide the Fund's 7-day yield ending on the date of the most recent calendar year or disclose a toll-free (or collect) telephone number that investors can use to obtain the Fund's current 7-day yield. For a Fund (other than a Money Market Fund or a Fund described in General Instruction C.3.(d)(iii)), provide the information in the following table with the specified captions AVERAGE ANNUAL TOTAL RETURNS (For the periods ended December 31, _____)Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection b -Paragraph 2 -Subparagraph iii false0Performance Table Closing [Text Block]falsePear Tree Polaris Foreign Value Small Cap Fund Summary (Pear Tree Polaris Foreign Value Small Cap Fund)UnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://peartreefunds.com/role/PearTreePolarisForeignValueSmallCapFundSummaryUnlabeled124