Label

Element

Value

[RiskReturnAbstract]

rr_RiskReturnAbstract

Document Type

dei_DocumentType

485BPOS

Document Period End Date

dei_DocumentPeriodEndDate

Sep. 30, 2014

Registrant Name

dei_EntityRegistrantName

CONESTOGA FUNDS

Central Index Key

dei_EntityCentralIndexKey

0001175813

Amendment Flag

dei_AmendmentFlag

false

Trading Symbol

dei_TradingSymbol

CCASX

Document Creation Date

dei_DocumentCreationDate

Feb. 12, 2015

Document Effective Date

dei_DocumentEffectiveDate

Jan. 28, 2015

Prospectus Date

rr_ProspectusDate

Jan. 31, 2015

Conestoga Small Cap Fund

[RiskReturnAbstract]

rr_RiskReturnAbstract

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Conestoga Small Cap Fund seeks to provide long-term growth of capital.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Conestoga Small Cap Fund:

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investments)

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

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 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 the Fund’s performance.  During the most recent fiscal year (ended September 30, 2014) the Fund’s portfolio turnover rate was 18.13% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

18.13%

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Conestoga Small Cap 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 (the Example for one year reflects the contractual expense limitation described above; the amounts for the other years reflect the Fund’s gross expenses) and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, under these assumptions, your costs would be:

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal market circumstances, the Fund invests at least 80% of its net assets in equity securities of small-cap companies. Equity securities include American depositary receipts (“ADRs”), convertible securities, foreign and domestic common and preferred stocks, rights and warrants. While there is no limit on investing in foreign securities, the Fund doesn’t expect investments in foreign securities to exceed 20% of the Fund’s total assets. “Small-cap companies” are companies that, at the time of purchase, have market capitalizations of up to $2.5 billion. The Fund will not change this policy unless it notifies shareholders at least 60 days in advance. For purposes of this policy, “net assets” includes any borrowings for investment purposes. The Adviser follows an investment style sometimes called “GARP” or “Growth At a Reasonable Price.” The Adviser generally invests the Fund’s assets in small-cap companies with expected earnings growth that exceed that of the average of all U.S. publicly traded companies, where valuations seem reasonable compared to the expected earnings growth, where fundamental financial characteristics appear to be strong, where (in the Adviser’s opinion) the business model offers sustainable competitive advantage, and where management has an important ownership stake in the company. The Adviser uses a bottom-up approach in selecting securities. There is no guarantee that the Fund will achieve its objective.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You may lose money by investing in the Fund. The Fund is subject to the following principal risks, more fully described in “Risks Factors” in this prospectus. The Fund’s net asset value and total return may be adversely affected for a number of reasons, including, without limitation, if any of the following occurs:

· The market values of securities acquired by the Fund decline;

· The Adviser does not execute the Fund’s principal investment strategies effectively;

· A security’s price fluctuates in response to events affecting the issuer’s profitability or viability;

· Smaller, less seasoned companies lose market share or profits to a greater extent than larger, established companies in times of deteriorating economic conditions;

· A company’s earnings do not increase as expected;

Foreign securities markets may be more volatile and subject to less governmental supervision than their counterparts in the U.S. Foreign securities are subject to fluctuations in currency exchange rates.

By itself, the Fund does not constitute a complete investment plan and should be considered a long-term investment for investors who can afford to weather changes in the value of their investment.

Risk Lose Money [Text]

rr_RiskLoseMoney

You may lose money by investing in the Fund.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the performance of Investors Class shares of the Fund from year to year and by showing how the Fund’s average annual returns for one, five and ten year periods compare with those of broad measures of market performance.   Past performance of the Fund (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available on the Fund’s website: www.conestogacapital.com/mutual_funds.htm.

As of the date of this prospectus, Institutional Class shares of the Small Cap Fund had been offered for sale for less than a full calendar year. The returns below represent the returns for Investors Class shares of the Small Cap Fund (formerly, “Shares”). Institutional Class shares and Investors Class shares of the Small Cap Fund should have returns that are substantially the same because they represent investments in the same portfolio securities and differ only to the extent that they have different expenses.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.conestogacapital.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance of the Fund (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Return

Annual Return 2005

rr_AnnualReturn2005

4.39%

Annual Return 2006

rr_AnnualReturn2006

9.45%

Annual Return 2007

rr_AnnualReturn2007

6.43%

Annual Return 2008

rr_AnnualReturn2008

(27.35%)

Annual Return 2009

rr_AnnualReturn2009

29.09%

Annual Return 2010

rr_AnnualReturn2010

23.99%

Annual Return 2011

rr_AnnualReturn2011

4.55%

Annual Return 2012

rr_AnnualReturn2012

11.00%

Annual Return 2013

rr_AnnualReturn2013

49.26%

Annual Return 2014

rr_AnnualReturn2014

(8.05%)

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

During the period shown in the chart, the Fund’s best performing quarter was for the three months ended 06/30/2009: 19.10%. During the same period, the Fund’s worst performing quarter was for the three months ended 12/31/2008: -21.51%.

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

the Fund’s best performing quarter

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

19.10%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

the Fund’s worst performing quarter

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(21.51%)

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns

as of 12/31/14

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

The after-tax returns are calculated using the historical highest individual federal marginal income tax rates.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

After-tax returns are not relevant to shareholders investing through tax-deferred programs such as an IRA plan.

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

This table compares the Fund’s average annual total returns for Investors Class shares for the periods ended December 31, 2014 to those of the Russell 2000 Index and the Russell 2000 Growth Index. Institutional Class shares and Investors Class shares of the Small Cap Fund should have returns that are substantially the same because they represent investments in the same portfolio securities and differ only to the extent that they have different expenses. The after-tax returns are calculated using the historical highest individual federal marginal income tax rates. These after-tax returns do not reflect the effect of any applicable state or local taxes. Your after-tax returns may differ from those shown. After-tax returns are not relevant to shareholders investing through tax-deferred programs such as an IRA plan. Future results may be different from those shown.

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

In calculating the federal income taxes due on redemptions, capital gains taxes resulting from redemptions are subtracted from the redemption proceeds and the tax benefits from capital losses resulting from the redemptions are added to the redemption proceeds. Under certain circumstances, the addition of the tax benefits from capital losses resulting from redemptions may cause the Returns After Taxes on Distributions and Sale of Fund Shares to be greater than the Returns After Taxes on Distributions or even the Returns Before Taxes.

Conestoga Small Cap Fund | Investors Class

[RiskReturnAbstract]

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.90%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.05%

Service Fees

rr_Component1OtherExpensesOverAssets

0.25%

Other Operating Expenses

rr_Component2OtherExpensesOverAssets

0.04%

Other Expenses (as a percentage of Assets):

rr_OtherExpensesOverAssets

0.29%

^[1]

Expenses (as a percentage of Assets)

rr_ExpensesOverAssets

1.24%

Fee Waiver or Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.14%)

^[2]

Net Expenses (as a percentage of Assets)

rr_NetExpensesOverAssets

1.10%

- 1 Year -

rr_ExpenseExampleYear01

112

- 3 Years -

rr_ExpenseExampleYear03

380

- 5 Years -

rr_ExpenseExampleYear05

668

- 10 Years -

rr_ExpenseExampleYear10

1,488

1 Year

rr_AverageAnnualReturnYear01

(8.05%)

5 Years

rr_AverageAnnualReturnYear05

14.58%

10 Years

rr_AverageAnnualReturnYear10

8.46%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2002

Conestoga Small Cap Fund | Institutional Class

[RiskReturnAbstract]

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.90%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Service Fees

rr_Component1OtherExpensesOverAssets

0.10%

Other Operating Expenses

rr_Component2OtherExpensesOverAssets

0.09%

Other Expenses (as a percentage of Assets):

rr_OtherExpensesOverAssets

0.19%

^[1]

Expenses (as a percentage of Assets)

rr_ExpensesOverAssets

1.09%

Fee Waiver or Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.19%)

^[2]

Net Expenses (as a percentage of Assets)

rr_NetExpensesOverAssets

0.90%

- 1 Year -

rr_ExpenseExampleYear01

92

- 3 Years -

rr_ExpenseExampleYear03

328

- 5 Years -

rr_ExpenseExampleYear05

582

- 10 Years -

rr_ExpenseExampleYear10

1,312

Conestoga Small Cap Fund | After Taxes on Distributions | Investors Class

[RiskReturnAbstract]

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

(8.05%)

5 Years

rr_AverageAnnualReturnYear05

14.27%

10 Years

rr_AverageAnnualReturnYear10

8.21%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2002

Conestoga Small Cap Fund | After Taxes on Distributions and Sales | Investors Class

[RiskReturnAbstract]

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

(4.56%)

5 Years

rr_AverageAnnualReturnYear05

11.65%

10 Years

rr_AverageAnnualReturnYear10

6.84%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 01, 2002

Conestoga Small Cap Fund | Russell 2000 Index (the performance information for this index reflects no deduction for fees, expenses or taxes)

[RiskReturnAbstract]

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

4.89%

5 Years

rr_AverageAnnualReturnYear05

15.55%

10 Years

rr_AverageAnnualReturnYear10

7.77%

Conestoga Small Cap Fund | Russell 2000 Growth Index (the performance information for this index reflects no deduction for fees, expenses or taxes)

[RiskReturnAbstract]

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

5.60%

5 Years

rr_AverageAnnualReturnYear05

16.80%

10 Years

rr_AverageAnnualReturnYear10

8.54%

Institutional Advisors LargeCap Fund

[RiskReturnAbstract]

rr_RiskReturnAbstract

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Institutional Advisors LargeCap Fund seeks to provide long-term growth of capital.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Institutional Advisors LargeCap Fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) (as a percentage of the lower of purchase or sale price)

rr_MaximumDeferredSalesChargeOverOther

none

Maximum Sales charge (load) imposed on reinvested dividends (as a percentage of purchase price)

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption Fee

rr_RedemptionFee

none

Exchange Fee

rr_ExchangeFee

none

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)

Management Fees

rr_ManagementFeesOverAssets

1.18%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.01%

Other Expenses (as a percentage of Assets):

rr_OtherExpensesOverAssets

0.10%

^[3]

Expenses (as a percentage of Assets)

rr_ExpensesOverAssets

1.29%

Fee Waiver or Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.08%)

^[4]

Net Expenses (as a percentage of Assets)

rr_NetExpensesOverAssets

1.21%

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

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 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 the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 19.52% of the average portfolio value.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

19.52%

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Institutional Advisors LargeCap 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 (the Example for one year reflects the contractual expense limitation described above; the amounts for the other years reflect the Fund’s gross expenses).  The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same.  Although your actual costs may be higher or lower, under these assumptions, your costs would be:

- 1 Year -

rr_ExpenseExampleYear01

123

- 3 Years -

rr_ExpenseExampleYear03

401

- 5 Years -

rr_ExpenseExampleYear05

700

- 10 Years -

rr_ExpenseExampleYear10

1,549

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal market conditions, the Fund invests at least 80% of its net assets in the equity securities of large-capitalization companies (generally, companies in the $5 billion and more capitalization range of the Standard & Poor’s 500 Index (“S&P 500 Index”)). The Fund will not change this policy unless it notifies shareholders at least 60 days in advance. Equity securities include convertible securities and domestic common stocks, among other things.

The Adviser’s style can best be described as a long-term, disciplined investment approach aimed at providing clients with strong returns, but which is absent of leverage, aggressive or untested techniques, and market timing. The Adviser focuses on providing superior investment performance along with reduced volatility, offering disciplined proprietary investment strategies, while maintaining broad sector and portfolio diversification. 

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You may lose money by investing in the Fund. The Fund is subject to the following principal risks, more fully described in the section of this prospectus entitled “Risk Factors”. The Fund’s net asset value and total returns may be adversely affected if any of the following occurs:

· The market values of securities acquired by the Fund decline.

· Large capitalization securities underperform other segments of the equity market or equity markets as a whole.

· The Adviser does not execute the Fund’s principal investment strategies effectively.

· Security prices fluctuate in response to events affecting an issuer’s profitability or viability.

· There is no assurance that large companies can withstand serious deterioration during periods of severe economic distress.

An investment in the Fund is not a deposit of National Penn Bank or any of its affiliates and is not insured or guaranteed by the FDIC or any other government agency.

By itself, the Fund does not constitute a complete investment plan and should be considered a long-term investment for investors who can afford to weather changes in the value of their investment.

Risk Lose Money [Text]

rr_RiskLoseMoney

You may lose money by investing in the Fund.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following 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 one year, five year, ten year, and since the Fund’s inception compare with those of broad measures of market performance.   Past performance of the Fund (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available on the Fund’s website: www.ialfx.com.

On March 31, 2009 the National Penn ITC (“NPITC”) Equity Fund, a collective investment fund, was converted to the Fund. The information below, for periods prior to March 31, 2009, includes the past performance of the NPITC Equity Fund, a separate account managed by Institutional Advisors, a business unit of National Penn Investors Trust Company, the predecessor investment entity to the Adviser in a fashion that is in all material respects equivalent to the management of the Fund. The data below reflects NPITC Equity Fund’s performance information over a period before the Fund’s registration statement became effective. The relevant account was not registered under the Investment Company Act of 1940, as amended (the “1940 Act”) and therefore was not subject to certain investment restrictions that are imposed by the 1940 Act; and if the relevant account was registered under the 1940 Act, its performance may have been adversely affected. The prior performance has been restated to reflect the imposition of the total expenses of the Fund for its initial fiscal year rather than the actual expenses of the NPITC Equity Fund.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.ialfx.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance of the Fund (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Bar Chart [Heading]

rr_BarChartHeading

Institutional Advisors LargeCap Fund

(Formerly NPITC Equity Fund)

Calendar Year Total Return

Annual Return 2005

rr_AnnualReturn2005

5.43%

Annual Return 2006

rr_AnnualReturn2006

13.73%

Annual Return 2007

rr_AnnualReturn2007

9.83%

Annual Return 2008

rr_AnnualReturn2008

(29.89%)

Annual Return 2009

rr_AnnualReturn2009

19.60%

Annual Return 2010

rr_AnnualReturn2010

14.42%

Annual Return 2011

rr_AnnualReturn2011

1.70%

Annual Return 2012

rr_AnnualReturn2012

15.35%

Annual Return 2013

rr_AnnualReturn2013

28.29%

Annual Return 2014

rr_AnnualReturn2014

14.02%

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

During the period shown in the chart, the Fund’s best performing quarter was for the three months ended December 31, 2013: 28.29%. During the same period, the Fund’s worst performing quarter was for the three months ended December 31, 2008: -29.89%.

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

the Fund’s best performing quarter

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Dec. 31, 2013

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

28.29%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

the Fund’s worst performing quarter

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(29.89%)

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns
as of 12/31/2014:

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

after-tax returns are calculated using the historical highest individual federal marginal income tax rates.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

After-tax returns are not relevant to shareholders investing through tax-deferred programs such as an IRA plan.

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

In the following table, after-tax returns are calculated using the historical highest individual federal marginal income tax rates. These after-tax returns do not reflect the effect of any applicable state or local taxes. Your after-tax returns may differ from those shown. After-tax returns are not relevant to shareholders investing through tax-deferred programs such as an IRA plan. Future results may be different from those shown.

Institutional Advisors LargeCap Fund | Institutional Advisors LargeCap Fund

[RiskReturnAbstract]

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

14.03%

5 Years

rr_AverageAnnualReturnYear05

14.45%

Since Inception

rr_AverageAnnualReturnSinceInception

18.54%

Inception Date

rr_AverageAnnualReturnInceptionDate

Mar. 31, 2009

Institutional Advisors LargeCap Fund | After Taxes on Distributions | Institutional Advisors LargeCap Fund

[RiskReturnAbstract]

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

11.63%

5 Years

rr_AverageAnnualReturnYear05

13.25%

Since Inception

rr_AverageAnnualReturnSinceInception

17.43%

Inception Date

rr_AverageAnnualReturnInceptionDate

Mar. 31, 2009

Institutional Advisors LargeCap Fund | After Taxes on Distributions and Sales | Institutional Advisors LargeCap Fund

[RiskReturnAbstract]

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

9.49%

5 Years

rr_AverageAnnualReturnYear05

11.40%

Since Inception

rr_AverageAnnualReturnSinceInception

15.03%

Inception Date

rr_AverageAnnualReturnInceptionDate

Mar. 31, 2009

Institutional Advisors LargeCap Fund | S&P 500 Index (the performance information for this index reflects no deduction for fees, expenses or taxes)

[RiskReturnAbstract]

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

13.69%

5 Years

rr_AverageAnnualReturnYear05

15.45%

Since Inception

rr_AverageAnnualReturnSinceInception

20.40%

Conestoga SMid Cap Fund

[RiskReturnAbstract]

rr_RiskReturnAbstract

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Conestoga SMid Cap Fund seeks to provide long-term growth of capital.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Conestoga SMid Cap Fund:

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investments

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

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 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 the Fund’s performance. During the most recent fiscal period (ended September 30, 2014), the Fund’s portfolio turnover rate was 9.60% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

9.60%

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Conestoga SMid Cap 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 (the Example for one year reflects the contractual expense limitation described above; the amounts for the other years reflect the Fund’s gross expenses) and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, under these assumptions, your costs would be:

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal market circumstances, the Fund invests at least 80% of its net assets in equity securities of small-to-mid (“smid”) capitalization companies. Equity securities include American depositary receipts (“ADRs”), convertible securities, foreign and domestic common and preferred stocks, rights and warrants. While there is no limit on investing in foreign securities, the Fund doesn’t expect investment in foreign securities to exceed 20% of the Fund’s total assets. “Small and Mid-cap companies” are companies that, at the time of initial purchase, have market capitalizations between $250 million and $12 billion. The Fund will not change this policy unless it notifies shareholders at least 60 days in advance. For purposes of this policy, “net assets” includes any borrowings for investment purposes. The Adviser follows an investment style sometimes called “GARP” or “Growth At a Reasonable Price.” The Adviser generally invests the Fund’s assets in Small and Mid-cap companies with expected earnings growth that exceed that of the average of all U.S. publicly traded companies, where valuations seem reasonable compared to the expected earnings growth, where fundamental financial characteristics appear to be strong, where (in the Adviser’s opinion) the business model offers sustainable competitive advantage, and where management has an important ownership stake in the company. The Adviser uses a bottom-up approach in selecting securities.

Risk [Heading]

rr_RiskHeading

Principal Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

You may lose money by investing in the Fund and there is no guarantee that the Fund will achieve its objective. The Fund is subject to the following principal risks, more fully described in “Risk Factors” in this prospectus. The Fund’s net asset value and total return may be adversely affected for a number of reasons, including, without limitation, if any of the following occurs:

· The market values of securities acquired by the Fund decline;

· The Adviser does not execute the Fund’s principal investment strategies effectively;

· A security’s price fluctuates in response to events affecting the issuer’s profitability or viability;

· A company’s earnings do not increase as expected;

· Small and Mid capitalization companies the Fund invests in may be more vulnerable to adverse business or economic events than larger, more established companies;

Foreign securities markets may be more volatile and subject to less governmental supervision than their counterparts in the U.S. Foreign securities are subject to fluctuations in currency exchange rates.

By itself, the Fund does not constitute a complete investment plan and should be considered a long-term investment for investors who can afford to weather changes in the value of their investment.

Risk Lose Money [Text]

rr_RiskLoseMoney

You may lose money by investing in the Fund and there is no guarantee that the Fund will achieve its objective.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The bar chart and performance table have been omitted because the Fund has been in operation for less than one calendar year.

Conestoga SMid Cap Fund | Investors Class

[RiskReturnAbstract]

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.85%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Service Fees

rr_Component1OtherExpensesOverAssets

0.25%

^[5]

Other Operating Expenses

rr_Component2OtherExpensesOverAssets

5.48%

Other Expenses (as a percentage of Assets):

rr_OtherExpensesOverAssets

5.73%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

none

Expenses (as a percentage of Assets)

rr_ExpensesOverAssets

6.58%

Fee Waiver or Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(5.23%)

^[6]

Net Expenses (as a percentage of Assets)

rr_NetExpensesOverAssets

1.35%

- 1 Year -

rr_ExpenseExampleYear01

137

- 3 Years -

rr_ExpenseExampleYear03

1,480

- 5 Years -

rr_ExpenseExampleYear05

2,781

- 10 Years -

rr_ExpenseExampleYear10

5,856

Conestoga SMid Cap Fund | Institutional Class

[RiskReturnAbstract]

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.85%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Service Fees

rr_Component1OtherExpensesOverAssets

none

Other Operating Expenses

rr_Component2OtherExpensesOverAssets

5.48%

Other Expenses (as a percentage of Assets):

rr_OtherExpensesOverAssets

5.48%

^[7]

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

none

Expenses (as a percentage of Assets)

rr_ExpensesOverAssets

6.33%

Fee Waiver or Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(5.23%)

^[6]

Net Expenses (as a percentage of Assets)

rr_NetExpensesOverAssets

1.10%

- 1 Year -

rr_ExpenseExampleYear01

112

- 3 Years -

rr_ExpenseExampleYear03

1,410

- 5 Years -

rr_ExpenseExampleYear05

2,674

- 10 Years -

rr_ExpenseExampleYear10

5,689

[1] The Fund has adopted a Shareholder Servicing Plan on behalf of Institutional Class shares that will allow the Fund to pay an annual fee of up to 0.25% of its average daily net assets for providing services to the Fund's Institutional Class shareholders.

[2] Conestoga Capital Advisors, LLC (the "Adviser") has contractually agreed to limit the Fund's 'Total Annual Fund Operating Expenses' (excluding taxes, extraordinary expenses, reorganization expenses, brokerage commissions, interest, other expenditures that are capitalized in accordance with generally accepted accounting principles, and other extraordinary expenses not incurred in the ordinary course of such Fund's business) to 0.90% (for the Institutional Class) and 1.10% (for the Investors Class) of the Fund's average daily net assets until at least January 31, 2016, subject to termination at any time at the option of the Board of Trustees (the "Board"). If it becomes unnecessary for the Adviser to waive fees or make reimbursements, the Adviser may recapture any of its prior waivers or reimbursements for a period not to exceed two fiscal years after the fiscal year in which the waiver or reimbursement was made to the extent such a recapture does not cause the "Total Annual Fund Operating Expenses" to exceed the applicable expense limitation that was in effect at the time of the waiver or reimbursement.

[3] The Adviser pays all Fund expenses except Rule 12b-1 fees, shareholder servicing fees, interest, taxes, brokerage commissions, expenses of Independent Trustees, other expenditures that are capitalized in accordance with generally accepted accounting principles, and other extraordinary expenses not incurred in the ordinary course of such Fund's business

[4] Institutional Advisors LLC (the "Adviser") has contractually agreed to limit the Fund's 'Total Annual Fund Operating Expenses'(excluding Rule 12b-1 fees, shareholder servicing fees, interest, taxes, brokerage commissions, expenses of Independent Trustees, other expenditures that are capitalized in accordance with generally accepted accounting principles, and other extraordinary expenses not incurred in the ordinary course of such Fund's business) to 1.20% of the Fund's average daily net assets until at least February 1, 2016, subject to termination at any time at the option of the Board of Trustees.

[5] The Fund has adopted a Shareholder Servicing Plan on behalf of the Investors Class that will allow the Fund to pay an annual fee of up to 0.25% of its average daily net assets for providing services to the Fund's Investors Class shareholders.

[6] Conestoga Capital Advisors, LLC (the "Adviser") has contractually agreed to limit the Fund's 'Total Annual Fund Operating Expenses'(excluding Rule 12b-1 fees, shareholder servicing fees, interest, taxes, brokerage commissions, other expenditures that are capitalized in accordance with generally accepted accounting principles, and other extraordinary expenses not incurred in the ordinary course of such Fund's business) to 1.35% (for the Investors Class) and 1.10% (for the Institutional Class) of the Fund's average daily net assets until at least January 31, 2016, subject to termination at any time at the option of the Board of Trustees. If it becomes unnecessary for the Adviser to waive fees or make reimbursements, the Adviser may recapture any of its prior waivers or reimbursements for a period not to exceed two fiscal years from the fiscal year in which the waiver or reimbursement was made to the extent such a recapture does not cause the "Total Annual Fund Operating Expenses" to exceed the applicable expense limitation that was in effect at the time of the waiver or reimbursement.

[7] "Other Expenses" for Institutional Class shares of the Fund are estimated and are based on the expenses of Investors Class shares for the current fiscal year.