485BPOS

AS FILED WITH THE U.S. SECURITIES AND EXCHANGE COMMISSION ON MAY 15, 2018

File No. 033-80514

File No. 811-08572

U.S. SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

POST-EFFECTIVE AMENDMENT NO. 50 ☒

AND

REGISTRATION STATEMENT

UNDER

THE INVESTMENT COMPANY ACT OF 1940

AMENDMENT NO. 51 ☒

BISHOP STREET FUNDS

(Exact Name of Registrant as Specified in Charter)

ONE FREEDOM VALLEY DRIVE

OAKS, PENNSYLVANIA 19456

(Address of Principal Executive Offices, Zip Code)

Registrant’s Telephone Number, including Area Code:

1-888-462-5386

Michael Beattie

c/o SEI Investments

One Freedom Valley Drive

Oaks, Pennsylvania 19456

(Name and Address of Agent for Service)

Copies to:

Sean Graber, Esquire Morgan, Lewis & Bockius LLP 1701 Market Street Philadelphia, Pennsylvania 19103 Dianne M. Descoteaux, Esquire c/o SEI Investments One Freedom Valley Drive Oaks, Pennsylvania 19456

It is proposed that this filing become effective (check appropriate box)

☒ Immediately upon filing pursuant to paragraph (b)

☐ On [date] pursuant to paragraph (b)

☐ 60 days after filing pursuant to paragraph (a)(1)

☐ 75 days after filing pursuant to paragraph (a)(2)

☐ On [date] pursuant to paragraph (a)(2) of Rule 485

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, and the Investment Company Act of 1940, as amended, the Registrant certifies that it meets all of the requirements for effectiveness of this Registration Statement under Rule 485(b) under the Securities Act of 1933, as amended, and has duly caused this Post-Effective Amendment No. 50 to Registration Statement No. 033-80514 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Oaks, Commonwealth of Pennsylvania on the 15th day of May, 2018.

	BISHOP STREET FUNDS
By:	*
	Michael Beattie, President

Pursuant to the requirements of the Securities Act of 1933, as amended, this Post-Effective Amendment to the Registration Statement has been signed below by the following persons in the capacities and on the date(s) indicated.

*	Trustee	May 15, 2018
Tracie E. Ahern
*	Trustee	May 15, 2018
Joseph T. Grause, Jr.
*	Trustee	May 15, 2018
Mitchell A. Johnson
*	Trustee	May 15, 2018
N. Jeffrey Klauder
*	Trustee	May 15, 2018
Betty L. Krikorian
*	Trustee	May 15, 2018
Robert A. Nesher
*	Trustee	May 15, 2018
Bruce Speca
*	Trustee	May 15, 2018
George J. Sullivan, Jr.
*	President	May 15, 2018
Michael Beattie
*	Treasurer, Controller & Chief Financial Officer	May 15, 2018
Stephen Connors

*By:	/s/ Dianne M. Descoteaux
	Dianne M. Descoteaux
	Attorney-in-Fact

EXHIBIT INDEX

Exhibit Number	Description
EX-101.INS	XBRL Instance Document
EX-101.SCH	XBRL Taxonomy Extension Schema Document
EX-101.CAL	XBRL Taxonomy Extension Calculation Linkbase
EX-101.DEF	XBRL Taxonomy Extension Definition Linkbase
EX-101.LAB	XBRL Taxonomy Extension Labels Linkbase
EX-101.PRE	XBRL Taxonomy Extension Presentation Linkbase

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Document Type	dei_DocumentType	485BPOS
Document Period End Date	dei_DocumentPeriodEndDate	Dec. 31, 2017
Registrant Name	dei_EntityRegistrantName	BISHOP STREET FUNDS
Central Index Key	dei_EntityCentralIndexKey	0000925737
Amendment Flag	dei_AmendmentFlag	false
Document Creation Date	dei_DocumentCreationDate	Apr. 30, 2018
Document Effective Date	dei_DocumentEffectiveDate	Apr. 30, 2018
Prospectus Date	rr_ProspectusDate	May 01, 2018

XML

Class A Shares | HAWAII MUNICIPAL BOND FUND

BISHOP STREET HAWAII MUNICIPAL BOND FUND

INVESTMENT OBJECTIVE

The investment objective of the Fund is to provide high current income exempt from federal and Hawaii state income taxes.

FEES AND EXPENSES

This table describes the fees and expenses that you may pay if you buy and hold Class A Shares 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 $50,000 in Class A Shares of the Fund. More information about these and other discounts is available from your financial professional and in "Sales Charges" beginning on page 11 of this prospectus and in "The Distributor" beginning on page S-23 of the Fund's Statement of Additional Information (SAI).

Shareholder Fees
(fees paid directly from your investment)

Shareholder Fees	Class A Shares HAWAII MUNICIPAL BOND FUND CLASS A SHARES
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	3.00%

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

Annual Fund Operating Expenses	Class A Shares HAWAII MUNICIPAL BOND FUND CLASS A SHARES
Management Fees	0.35%
Distribution (12b-1) Fees	0.25%
Other Expenses	0.69%
Shareholder Servicing Fees	0.25%
Other Operating Expenses	0.44%
Total Annual Fund Operating Expenses	1.29%
Less Fee Waivers and/or Expense Reimbursements	(0.49%)	[1]
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements	0.80%

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 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 (including one year of capped expenses in each period) remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	1 Year	3 Years	5 Years	10 Years
Class A Shares | HAWAII MUNICIPAL BOND FUND | CLASS A SHARES | USD ($)	379	650	941	1,768

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 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 total annual Fund operating expenses or in the example, affect the Fund’s performance. During its most recent fiscal year, the Fund’s portfolio turnover rate was 25% of the average value of its portfolio.

PRINCIPAL INVESTMENT STRATEGIES

The Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in investment grade municipal bonds, the interest from which is exempt from regular federal and Hawaii state income taxes. While the Adviser attempts to maximize the portion of the Fund’s assets invested in Hawaii issues, the Fund may also invest in municipal bonds issued by other U.S. states, territories and possessions. There is no restriction upon the amount of the Fund’s assets that may be invested in obligations that pay income subject to the federal alternative minimum tax. To the extent that the Fund invests in securities subject to the alternative minimum tax, the income received from these securities could be taxable. There is no limit on the average maturity of the Fund’s portfolio. The Adviser will use its judgment to invest in securities that will provide a high level of current income in light of current market conditions. In making a determination to buy, sell or hold a security, the portfolio managers give special consideration to the relative value of the security in comparison to the available alternatives, while remaining consistent with the objectives of the portfolio. The portfolio management team considers several factors when selecting securities for the Fund’s portfolio, including the current state of a bond’s issuer and the possibility that an improvement or deterioration in its financial health may result in, respectively, an upgrade or downgrade of the issuer’s credit rating. The portfolio management team may continue to hold a bond that has been downgraded if it believes it is in the best interest of the Fund’s shareholders. The portfolio management team may choose to sell a bond based on its analysis of the economy and any direct impact on budget cash flows, debt ratios, and credit ratings.

PRINCIPAL RISKS

As with all mutual funds, there is no guarantee that the Fund will achieve its investment objective. You could lose money by investing in the Fund. A Fund share is not a bank deposit and it is not insured or guaranteed by the FDIC or any government agency. In addition to this risk, the Fund is subject to additional risks that may affect the value of its shares, including, in alphabetical order:

• Concentration Risk
  
  The Fund’s concentration of investments in securities of issuers located in Hawaii subjects the Fund to economic conditions and government policies within that state. As a result, the Fund will be more susceptible to factors that adversely affect issuers of Hawaii obligations than a mutual fund that does not have as great a concentration in Hawaii.

• Fixed Income Risk
  
  The prices of fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments. Generally, fixed income securities will decrease in value if interest rates rise and vice versa. The volatility of lower-rated securities is even greater than that of higher-rated securities. Also, longer-term and longer-duration securities are generally more volatile, so the maturity and duration of securities affects their risk. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are at, or near, historic lows. In addition, there is the possibility that an issuer will fail to make timely payments of interest or principal or go bankrupt.

• Liquidity Risk
  
  Liquidity risk is the risk that certain securities may be difficult or impossible to sell at the time and the price that the Fund would like.

• Management Risk
  
  The Fund is subject to the risk that a strategy used by the Fund’s management may fail to produce the intended result.

• Municipal Issuer Risk
  
  There may be economic or political changes that impact the ability of municipal issuers to repay principal and to make interest payments on municipal securities. Changes in the financial condition or credit rating of municipal issuers also may adversely affect the value of the Fund’s securities.

• Non-Diversification Risk
  
  The Fund is non-diversified, which means that it may invest in the securities of relatively few issuers. As a result, the Fund may be more susceptible to a single adverse economic or political/regulatory occurrence affecting one or more of these issuers, and may experience increased volatility due to its investments in those securities.

• Tax Risk
  
  Income from municipal bonds held by the Fund could be declared taxable because of unfavorable changes in tax laws, adverse interpretations by the Internal Revenue Service (IRS) or state tax authorities, or noncompliant conduct of a bond issuer. In addition, a portion of the Fund’s otherwise exempt-interest dividends may be taxable to those shareholders subject to the federal alternative minimum (“AMT”) tax.

• Valuation Risk
  
  Valuation risk is the risk that certain securities may be difficult to value.

PERFORMANCE INFORMATION

The bar chart and table that follow illustrate the risks and volatility of an investment in Class A Shares of the Fund. Of course, the Fund's past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. Updated performance information is available on the Fund's website at www.bishopstreetfunds.com or by calling 1-800-262-9565.

The following bar chart shows changes in performance of the Fund's Class A Shares from calendar year to calendar year. Sales charges are not reflected in the bar chart; if they were reflected, returns would be less than those shown.

Best Quarter	Worst Quarter
5.26%	(4.09)%
(09/30/09)	(12/31/10)

The performance information shown above is based on a calendar year. The Fund’s Class A Shares’ performance information from 1/1/18 to 3/31/18 was (4.27)%.

The following table compares the Fund’s Class A Shares’ average annual total returns (after applicable sales charges) to those of the Bloomberg Barclays Capital Municipal Bond Index and the ICE BofAML 1-22 Year U.S. Municipal Securities Index. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (IRAs).

Returns after taxes on distributions and sale of Fund shares may be higher than before tax returns when a net capital loss occurs upon the redemption of Fund shares.

Average Annual Total Returns
(for the periods ended December 31, 2017)

Average Annual Total Returns - Class A Shares - HAWAII MUNICIPAL BOND FUND		1 Year	5 Years	10 Years
CLASS A SHARES		0.39%	1.07%	2.75%
CLASS A SHARES | Fund Return After Taxes on Distributions		0.37%	0.98%	2.70%
CLASS A SHARES | Fund Return After Taxes on Distributions and Sale of Fund Shares		1.14%	1.34%	2.76%
Bloomberg Barclays Capital Municipal Bond Index Return (reflects no deduction for fees, expenses or taxes)	[1]	5.45%	3.02%	4.46%
ICE BofAML 1-22 Year U.S. Municipal Securities Index (reflects no deduction for fees, expenses or taxes)	[1]	4.53%	2.71%	4.26%

[1] Bishop Street Capital Management (Adviser) has contractually agreed to reduce fees and reimburse expenses to the extent necessary to keep Total Annual Fund Operating Expenses for Class A Shares (excluding interest, taxes, brokerage commissions, acquired fund fees and expenses, and extraordinary expenses (collectively, excluded expenses)) from exceeding 0.80% of the Fund's average daily net assets through April 30, 2019 (Contractual Expense Limitation). In addition, the Board of Trustees (Board) of Bishop Street Funds (Trust) may permit the Adviser to receive from the Fund the difference between the Total Annual Fund Operating Expenses (not including excluded expenses) and the Contractual Expense Limitation to recoup all or a portion of its prior fee reductions or expense reimbursements made during the three-year period preceding the recoupment if at any point Total Annual Fund Operating Expenses (not including excluded expenses) are below the Contractual Expense Limitation: (i) at the time of the fee waiver and/or expense reimbursement; and (ii) at the time of the recoupment. This agreement may be terminated: (i) by the Board, for any reason at any time; or (ii) by the Adviser, upon ninety (90) days' prior written notice to the Trust, effective as of the close of business on April 30, 2019.

[1] As of May 1, 2018, the Fund’s benchmark changed from the Bloomberg Barclays Capital Municipal Bond Index to the ICE BofAML 1-22 Year U.S. Municipal Securities Index to provide a more useful comparison of Fund performance.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

BISHOP STREET FUNDS

Prospectus Date

rr_ProspectusDate

May 01, 2018

Class A Shares | HAWAII MUNICIPAL BOND FUND

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

BISHOP STREET HAWAII MUNICIPAL BOND FUND

Objective [Heading]

rr_ObjectiveHeading

INVESTMENT OBJECTIVE

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The investment objective of the Fund is to provide high current income exempt from federal and Hawaii state income taxes.

Expense [Heading]

rr_ExpenseHeading

FEES AND EXPENSES

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold Class A Shares 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 $50,000 in Class A Shares of the Fund. More information about these and other discounts is available from your financial professional and in "Sales Charges" beginning on page 11 of this prospectus and in "The Distributor" beginning on page S-23 of the Fund's Statement of Additional Information (SAI).

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees
(fees paid directly from your investment)

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)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

April 30, 2019

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 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 total annual Fund operating expenses or in the example, affect the Fund’s performance. During its most recent fiscal year, the Fund’s portfolio turnover rate was 25% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

25.00%

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A Shares of the Fund.

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

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 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 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 (including one year of capped expenses in each period) remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

PRINCIPAL INVESTMENT STRATEGIES

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in investment grade municipal bonds, the interest from which is exempt from regular federal and Hawaii state income taxes. While the Adviser attempts to maximize the portion of the Fund’s assets invested in Hawaii issues, the Fund may also invest in municipal bonds issued by other U.S. states, territories and possessions. There is no restriction upon the amount of the Fund’s assets that may be invested in obligations that pay income subject to the federal alternative minimum tax. To the extent that the Fund invests in securities subject to the alternative minimum tax, the income received from these securities could be taxable. There is no limit on the average maturity of the Fund’s portfolio. The Adviser will use its judgment to invest in securities that will provide a high level of current income in light of current market conditions. In making a determination to buy, sell or hold a security, the portfolio managers give special consideration to the relative value of the security in comparison to the available alternatives, while remaining consistent with the objectives of the portfolio. The portfolio management team considers several factors when selecting securities for the Fund’s portfolio, including the current state of a bond’s issuer and the possibility that an improvement or deterioration in its financial health may result in, respectively, an upgrade or downgrade of the issuer’s credit rating. The portfolio management team may continue to hold a bond that has been downgraded if it believes it is in the best interest of the Fund’s shareholders. The portfolio management team may choose to sell a bond based on its analysis of the economy and any direct impact on budget cash flows, debt ratios, and credit ratings.

Risk [Heading]

rr_RiskHeading

PRINCIPAL RISKS

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

As with all mutual funds, there is no guarantee that the Fund will achieve its investment objective. You could lose money by investing in the Fund. A Fund share is not a bank deposit and it is not insured or guaranteed by the FDIC or any government agency. In addition to this risk, the Fund is subject to additional risks that may affect the value of its shares, including, in alphabetical order:

• Concentration Risk
  
  The Fund’s concentration of investments in securities of issuers located in Hawaii subjects the Fund to economic conditions and government policies within that state. As a result, the Fund will be more susceptible to factors that adversely affect issuers of Hawaii obligations than a mutual fund that does not have as great a concentration in Hawaii.

• Fixed Income Risk
  
  The prices of fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments. Generally, fixed income securities will decrease in value if interest rates rise and vice versa. The volatility of lower-rated securities is even greater than that of higher-rated securities. Also, longer-term and longer-duration securities are generally more volatile, so the maturity and duration of securities affects their risk. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are at, or near, historic lows. In addition, there is the possibility that an issuer will fail to make timely payments of interest or principal or go bankrupt.

• Liquidity Risk
  
  Liquidity risk is the risk that certain securities may be difficult or impossible to sell at the time and the price that the Fund would like.

• Management Risk
  
  The Fund is subject to the risk that a strategy used by the Fund’s management may fail to produce the intended result.

• Municipal Issuer Risk
  
  There may be economic or political changes that impact the ability of municipal issuers to repay principal and to make interest payments on municipal securities. Changes in the financial condition or credit rating of municipal issuers also may adversely affect the value of the Fund’s securities.

• Non-Diversification Risk
  
  The Fund is non-diversified, which means that it may invest in the securities of relatively few issuers. As a result, the Fund may be more susceptible to a single adverse economic or political/regulatory occurrence affecting one or more of these issuers, and may experience increased volatility due to its investments in those securities.

• Tax Risk
  
  Income from municipal bonds held by the Fund could be declared taxable because of unfavorable changes in tax laws, adverse interpretations by the Internal Revenue Service (IRS) or state tax authorities, or noncompliant conduct of a bond issuer. In addition, a portion of the Fund’s otherwise exempt-interest dividends may be taxable to those shareholders subject to the federal alternative minimum (“AMT”) tax.

• Valuation Risk
  
  Valuation risk is the risk that certain securities may be difficult to value.

Risk Lose Money [Text]

rr_RiskLoseMoney

You could lose money by investing in the Fund.

Risk Nondiversified Status [Text]

rr_RiskNondiversifiedStatus

• Non-Diversification Risk
  
  The Fund is non-diversified, which means that it may invest in the securities of relatively few issuers. As a result, the Fund may be more susceptible to a single adverse economic or political/regulatory occurrence affecting one or more of these issuers, and may experience increased volatility due to its investments in those securities.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

A Fund share is not a bank deposit and it is not insured or guaranteed by the FDIC or any government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

PERFORMANCE INFORMATION

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The bar chart and table that follow illustrate the risks and volatility of an investment in Class A Shares of the Fund. Of course, the Fund's past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. Updated performance information is available on the Fund's website at www.bishopstreetfunds.com or by calling 1-800-262-9565.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The bar chart and table that follow illustrate the risks and volatility of an investment in Class A Shares of the Fund.

Performance Availability Phone [Text]

rr_PerformanceAvailabilityPhone

1-800-262-9565

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.bishopstreetfunds.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Of course, the Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.

Bar Chart Narrative [Text Block]

rr_BarChartNarrativeTextBlock

The following bar chart shows changes in performance of the Fund's Class A Shares from calendar year to calendar year. Sales charges are not reflected in the bar chart; if they were reflected, returns would be less than those shown.

Bar Chart Does Not Reflect Sales Loads [Text]

rr_BarChartDoesNotReflectSalesLoads

Sales charges are not reflected in the bar chart; if they were reflected, returns would be less than those shown.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Best Quarter	Worst Quarter
5.26%	(4.09)%
(09/30/09)	(12/31/10)

The performance information shown above is based on a calendar year. The Fund’s Class A Shares’ performance information from 1/1/18 to 3/31/18 was (4.27)%.

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns
(for the periods ended December 31, 2017)

Performance Table Market Index Changed

rr_PerformanceTableMarketIndexChanged

As of May 1, 2018, the Fund's benchmark changed from the Bloomberg Barclays Capital Municipal Bond Index to the ICE BofAML 1-22 Year U.S. Municipal Securities Index to provide a more useful comparison of Fund performance.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (IRAs).

Performance Table Explanation after Tax Higher

rr_PerformanceTableExplanationAfterTaxHigher

Returns after taxes on distributions and sale of Fund shares may be higher than before tax returns when a net capital loss occurs upon the redemption of Fund shares.

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

The following table compares the Fund’s Class A Shares’ average annual total returns (after applicable sales charges) to those of the Bloomberg Barclays Capital Municipal Bond Index and the ICE BofAML 1-22 Year U.S. Municipal Securities Index. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (IRAs).

Returns after taxes on distributions and sale of Fund shares may be higher than before tax returns when a net capital loss occurs upon the redemption of Fund shares.

Class A Shares | HAWAII MUNICIPAL BOND FUND | CLASS A SHARES

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

3.00%

Management Fees

rr_ManagementFeesOverAssets

0.35%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder Servicing Fees

rr_Component1OtherExpensesOverAssets

0.25%

Other Operating Expenses

rr_Component2OtherExpensesOverAssets

0.44%

Other Expenses

rr_OtherExpensesOverAssets

0.69%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.29%

Less Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.49%)

^[1]

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.80%

1 Year

rr_ExpenseExampleYear01

$ 379

3 Years

rr_ExpenseExampleYear03

650

5 Years

rr_ExpenseExampleYear05

941

10 Years

rr_ExpenseExampleYear10

$ 1,768

2008

rr_AnnualReturn2008

(1.27%)

2009

rr_AnnualReturn2009

9.35%

2010

rr_AnnualReturn2010

1.44%

2011

rr_AnnualReturn2011

8.45%

2012

rr_AnnualReturn2012

4.80%

2013

rr_AnnualReturn2013

(2.72%)

2014

rr_AnnualReturn2014

6.10%

2015

rr_AnnualReturn2015

2.36%

2016

rr_AnnualReturn2016

(0.57%)

2017

rr_AnnualReturn2017

3.46%

Year to Date Return, Label

rr_YearToDateReturnLabel

The Fund's Class A Shares' performance information

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Mar. 31, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

(4.27%)

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

5.26%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2010

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(4.09%)

1 Year

rr_AverageAnnualReturnYear01

0.39%

5 Years

rr_AverageAnnualReturnYear05

1.07%

10 Years

rr_AverageAnnualReturnYear10

2.75%

Class A Shares | HAWAII MUNICIPAL BOND FUND | Fund Return After Taxes on Distributions | CLASS A SHARES

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

0.37%

5 Years

rr_AverageAnnualReturnYear05

0.98%

10 Years

rr_AverageAnnualReturnYear10

2.70%

Class A Shares | HAWAII MUNICIPAL BOND FUND | Fund Return After Taxes on Distributions and Sale of Fund Shares | CLASS A SHARES

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

1.14%

5 Years

rr_AverageAnnualReturnYear05

1.34%

10 Years

rr_AverageAnnualReturnYear10

2.76%

Class A Shares | HAWAII MUNICIPAL BOND FUND | Bloomberg Barclays Capital Municipal Bond Index Return (reflects no deduction for fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

5.45%

^[2]

5 Years

rr_AverageAnnualReturnYear05

3.02%

^[2]

10 Years

rr_AverageAnnualReturnYear10

4.46%

^[2]

Class A Shares | HAWAII MUNICIPAL BOND FUND | ICE BofAML 1-22 Year U.S. Municipal Securities Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

4.53%

^[2]

5 Years

rr_AverageAnnualReturnYear05

2.71%

^[2]

10 Years

rr_AverageAnnualReturnYear10

4.26%

^[2]

[1] Bishop Street Capital Management (Adviser) has contractually agreed to reduce fees and reimburse expenses to the extent necessary to keep Total Annual Fund Operating Expenses for Class A Shares (excluding interest, taxes, brokerage commissions, acquired fund fees and expenses, and extraordinary expenses (collectively, excluded expenses)) from exceeding 0.80% of the Fund's average daily net assets through April 30, 2019 (Contractual Expense Limitation). In addition, the Board of Trustees (Board) of Bishop Street Funds (Trust) may permit the Adviser to receive from the Fund the difference between the Total Annual Fund Operating Expenses (not including excluded expenses) and the Contractual Expense Limitation to recoup all or a portion of its prior fee reductions or expense reimbursements made during the three-year period preceding the recoupment if at any point Total Annual Fund Operating Expenses (not including excluded expenses) are below the Contractual Expense Limitation: (i) at the time of the fee waiver and/or expense reimbursement; and (ii) at the time of the recoupment. This agreement may be terminated: (i) by the Board, for any reason at any time; or (ii) by the Adviser, upon ninety (90) days' prior written notice to the Trust, effective as of the close of business on April 30, 2019.

[2] As of May 1, 2018, the Fund’s benchmark changed from the Bloomberg Barclays Capital Municipal Bond Index to the ICE BofAML 1-22 Year U.S. Municipal Securities Index to provide a more useful comparison of Fund performance.

XML

DIVIDEND VALUE FUND

BISHOP STREET DIVIDEND VALUE FUND

INVESTMENT OBJECTIVE

The investment objective of the Fund is to provide total return, consisting of current income and capital appreciation.

FEES AND EXPENSES

This table describes the fees and expenses that you may pay if you buy and hold Class I Shares of the Fund.

Shareholder Fees
(fees paid directly from your investment)

Shareholder Fees	DIVIDEND VALUE FUND CLASS I SHARES USD ($)
Shareholder Fees (fees paid directly from your investment)	none

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

Annual Fund Operating Expenses	DIVIDEND VALUE FUND CLASS I SHARES
Management Fees	0.74%
Other Expenses	0.72%
Shareholder Servicing Fees	0.25%
Other Operating Expenses	0.47%
Total Annual Fund Operating Expenses	1.46%
Less Fee Waivers and/or Expense Reimbursements	(0.41%)	[1]
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements	1.05%

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 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 (including one year of capped expenses in each period) remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	1 Year	3 Years	5 Years	10 Years
DIVIDEND VALUE FUND | CLASS I SHARES | USD ($)	107	421	758	1,711

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 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 total annual Fund operating expenses or in the example, affect the Fund’s performance. During its most recent fiscal year, the Fund’s portfolio turnover rate was 11% of the average value of its portfolio.

PRINCIPAL INVESTMENT STRATEGIES

Under normal circumstances, the Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in income-producing (dividend-paying) equity securities. The Fund invests primarily in common stocks, but may invest in other types of equity securities, including preferred stocks and convertible securities. The Fund invests principally in securities of companies that Columbia Management Investment Advisers, LLC (Sub-Adviser) believes are undervalued, but may also invest in securities of companies that the Sub-Adviser believes have the potential for long-term growth. The Fund may invest in companies that have market capitalizations of any size.

The Fund may invest up to 20% of its net assets in debt securities, including securities that, at the time of purchase, are rated below investment grade or are unrated but determined by the Sub-Adviser to be of comparable quality (commonly referred to as “high yield securities” or “junk” bonds). The Fund may also invest up to 20% of its net assets in foreign securities. The Fund may invest directly in foreign securities or indirectly through depositary receipts. Depositary receipts are receipts issued by a bank or trust company that evidence ownership of underlying securities issued by foreign companies.

The Sub-Adviser combines fundamental and quantitative analysis with risk management in identifying investment opportunities and constructing the Fund’s portfolio. In selecting investments, the Sub-Adviser considers, among other factors:

• various measures of valuation, including price-to-cash flow, price-to-earnings, price-to-sales, and price-to-book value. The Sub-Adviser believes that companies with lower valuations are generally more likely to provide opportunities for capital appreciation;

• potential indicators of stock price appreciation, such as anticipated earnings growth, company restructuring, changes in management, business model changes, new product opportunities, or anticipated improvements in macroeconomic factors;

• the financial condition and management of a company, including its competitive position, the quality of its balance sheet and earnings, its future prospects, and the potential for growth and stock price appreciation; and

• overall economic and market conditions.

The Sub-Adviser may sell a security when the security’s price reaches a target set by the Sub-Adviser; if the Sub-Adviser believes that there is deterioration in the issuer’s financial circumstances or fundamental prospects, or that other investments are more attractive; or for other reasons.

PRINCIPAL RISKS

As with all mutual funds, there is no guarantee that the Fund will achieve its investment objective. You could lose money by investing in the Fund. A Fund share is not a bank deposit and it is not insured or guaranteed by the FDIC or any government agency. In addition to this risk, the Fund is subject to additional risks that may affect the value of its shares, including, in alphabetical order:

• Changing Distribution Level Risk
  
  The amount of the distributions paid by the Fund will vary and generally depends on the amount of interest income and/or dividends received by the Fund on the securities it holds. The Fund may not be able to pay distributions or may have to reduce its distribution level if the interest income and/or dividends the Fund receives from its investments decline.

• Convertible Securities Risk
  
  Convertible securities are subject to the usual risks associated with fixed income securities, such as interest rate risk and credit risk. Convertible securities also react to changes in the value of the common stock into which they convert, and are thus subject to equity risk.

• Equity Risk
  
  Since it purchases equity securities, the Fund is subject to the risk that stock prices will fall over short or extended periods of time. Historically, the equity markets have moved in cycles, and the value of the Fund’s securities may fluctuate drastically from day to day. Individual companies may report poor results or be negatively affected by industry and/or economic trends and developments. The prices of securities issued by such companies may suffer a decline in response. These factors contribute to price volatility.

• Fixed Income Risk
  
  The prices of fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers. Generally, fixed income securities will decrease in value if interest rates rise and vice versa. The volatility of lower-rated securities is even greater than that of higher-rated securities. Also, longer-term and longer-duration securities are generally more volatile, so the maturity and duration of securities affects their risk. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are at, or near, historic lows. In addition, there is the possibility that an issuer will fail to make timely payments of interest or principal or go bankrupt. The lower the rating of the security, the greater the credit risk.

• Foreign Securities Risk
  
  Foreign securities involve additional risks such as currency fluctuations, economic or financial instability, lack of timely or reliable financial information, and unfavorable political or legal developments. While depositary receipts provide an alternative to directly purchasing the underlying foreign securities in their respective national markets and currencies, investments in depositary receipts continue to be subject to many of the risks associated with investing directly in foreign securities.

• High Yield Risk
  
  Compared with investment-grade bonds, high yield bonds carry a greater risk of default or downgrade and are more volatile. High yield bonds may also be less liquid and more difficult to value.

• Investment Style Risk
  
  The Fund may invest in either “growth” and/or “value” stocks. The value of growth stocks may be more sensitive to changes in current or expected earnings than the prices of other types of securities. With value stocks, the assessment of a company’s value or prospects for exceeding earnings expectations or market conditions may be wrong. In addition, over time, growth or value stocks may go in and out of favor, causing the Fund to sometimes underperform other funds that use different investment approaches.

• Management Risk
  
  The Fund is subject to the risk that a strategy used by the Fund’s management may fail to produce the intended result.

• Preferred Stock Risk
  
  Preferred stock is a type of stock that generally pays dividends at a specified rate and that has preference over common stock in the payment of dividends and the liquidation of assets. Preferred stock does not ordinarily carry voting rights. The price of a preferred stock is generally determined by earnings, type of products or services, projected growth rates, experience of management, liquidity, and general market conditions of the markets on which the stock trades. The most significant risks associated with investments in preferred stock include the risk of losses attributable to changes in interest rates and equity risk.

• Quantitative Model Risk
  
  Investments selected using quantitative methods may perform differently from the market as a whole. There can be no assurance that these methodologies will enable the Fund to achieve its objective.

• Small- and Mid-Cap Company Securities Risk
  
  Investments in small- and mid-capitalization companies (small- and mid-cap companies) often involve greater risks than investments in larger, more established companies (larger companies) because small and mid-cap companies tend to have less predictable earnings and may lack the management experience, financial resources, product diversification and competitive strengths of larger companies, and securities of small- and mid-cap companies may be less liquid and more volatile than the securities of larger companies.

PERFORMANCE INFORMATION

The bar chart and table that follow illustrate the risks and volatility of an investment in Class I Shares of the Fund. Prior to February 1, 2010, the Fund’s principal investment strategy was to invest at least 80% of its net assets (plus any borrowings for investment purposes) in large-cap equity securities; therefore, the past performance shown below may have differed had the Fund’s current investment strategy been in effect. Of course, the Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. Updated performance information is available on the Fund’s website at www.bishopstreetfunds.com or by calling 1-800-262-9565.

The following bar chart shows changes in performance of the Fund’s Class I Shares from calendar year to calendar year.

Best Quarter	Worst Quarter
17.39%	(24.61)%
(06/30/09)	(12/31/08)

The performance information shown above is based on a calendar year. The Fund’s performance information from 1/1/18 to 3/31/18 was (2.28)%.

The following table compares the Fund’s average annual total returns to those of the Russell 1000^® Value Index. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (IRAs).

Average Annual Total Returns
(for the periods ended December 31, 2017)

Average Annual Total Returns - DIVIDEND VALUE FUND	1 Year	5 Years	10 Years	Since Inception	Inception Date
CLASS I SHARES	20.47%	14.61%	7.25%	7.24%	May 03, 2006
CLASS I SHARES | Return After Taxes on Distributions	17.71%	13.50%	6.59%	6.54%	May 03, 2006
CLASS I SHARES | Return After Taxes on Distributions and Sale of Fund Shares	13.67%	11.55%	5.75%	5.76%	May 03, 2006
Russell 1000® Value Index Return (reflects no deduction for fees, expenses or taxes)	13.66%	14.04%	7.10%	7.12%	May 03, 2006

[1] Bishop Street Capital Management (Adviser) has contractually agreed to reduce fees and reimburse expenses to the extent necessary to keep Total Annual Fund Operating Expenses for Class I Shares (excluding interest, taxes, brokerage commissions, acquired fund fees and expenses, and extraordinary expenses (collectively, excluded expenses)) from exceeding 1.05% of the Fund’s average daily net assets through April 30, 2019 (Contractual Expense Limitation). In addition, the Board of Trustees (Board) of Bishop Street Funds (Trust) may permit the Adviser to receive from the Fund the difference between the Total Annual Fund Operating Expenses (not including excluded expenses) and the Contractual Expense Limitation to recoup all or a portion of its prior fee reductions or expense reimbursements made during the three-year period preceding the recoupment if at any point Total Annual Fund Operating Expenses (not including excluded expenses) are below the Contractual Expense Limitation: (i) at the time of the fee waiver and/or expense reimbursement; and (ii) at the time of the recoupment. This agreement may be terminated: (i) by the Board, for any reason at any time; or (ii) by the Adviser, upon ninety (90) days’ prior written notice to the Trust, effective as of the close of business on April 30, 2019.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

BISHOP STREET FUNDS

Prospectus Date

rr_ProspectusDate

May 01, 2018

DIVIDEND VALUE FUND

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

BISHOP STREET DIVIDEND VALUE FUND

Objective [Heading]

rr_ObjectiveHeading

INVESTMENT OBJECTIVE

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The investment objective of the Fund is to provide total return, consisting of current income and capital appreciation.

Expense [Heading]

rr_ExpenseHeading

FEES AND EXPENSES

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold Class I Shares of the Fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees
(fees paid directly from your investment)

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)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

April 30, 2019

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 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 total annual Fund operating expenses or in the example, affect the Fund’s performance. During its most recent fiscal year, the Fund’s portfolio turnover rate was 11% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

11.00%

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 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 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 (including one year of capped expenses in each period) remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

PRINCIPAL INVESTMENT STRATEGIES

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, the Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in income-producing (dividend-paying) equity securities. The Fund invests primarily in common stocks, but may invest in other types of equity securities, including preferred stocks and convertible securities. The Fund invests principally in securities of companies that Columbia Management Investment Advisers, LLC (Sub-Adviser) believes are undervalued, but may also invest in securities of companies that the Sub-Adviser believes have the potential for long-term growth. The Fund may invest in companies that have market capitalizations of any size.

The Fund may invest up to 20% of its net assets in debt securities, including securities that, at the time of purchase, are rated below investment grade or are unrated but determined by the Sub-Adviser to be of comparable quality (commonly referred to as “high yield securities” or “junk” bonds). The Fund may also invest up to 20% of its net assets in foreign securities. The Fund may invest directly in foreign securities or indirectly through depositary receipts. Depositary receipts are receipts issued by a bank or trust company that evidence ownership of underlying securities issued by foreign companies.

The Sub-Adviser combines fundamental and quantitative analysis with risk management in identifying investment opportunities and constructing the Fund’s portfolio. In selecting investments, the Sub-Adviser considers, among other factors:

• various measures of valuation, including price-to-cash flow, price-to-earnings, price-to-sales, and price-to-book value. The Sub-Adviser believes that companies with lower valuations are generally more likely to provide opportunities for capital appreciation;

• potential indicators of stock price appreciation, such as anticipated earnings growth, company restructuring, changes in management, business model changes, new product opportunities, or anticipated improvements in macroeconomic factors;

• the financial condition and management of a company, including its competitive position, the quality of its balance sheet and earnings, its future prospects, and the potential for growth and stock price appreciation; and

• overall economic and market conditions.

The Sub-Adviser may sell a security when the security’s price reaches a target set by the Sub-Adviser; if the Sub-Adviser believes that there is deterioration in the issuer’s financial circumstances or fundamental prospects, or that other investments are more attractive; or for other reasons.

Risk [Heading]

rr_RiskHeading

PRINCIPAL RISKS

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

As with all mutual funds, there is no guarantee that the Fund will achieve its investment objective. You could lose money by investing in the Fund. A Fund share is not a bank deposit and it is not insured or guaranteed by the FDIC or any government agency. In addition to this risk, the Fund is subject to additional risks that may affect the value of its shares, including, in alphabetical order:

• Changing Distribution Level Risk
  
  The amount of the distributions paid by the Fund will vary and generally depends on the amount of interest income and/or dividends received by the Fund on the securities it holds. The Fund may not be able to pay distributions or may have to reduce its distribution level if the interest income and/or dividends the Fund receives from its investments decline.

• Convertible Securities Risk
  
  Convertible securities are subject to the usual risks associated with fixed income securities, such as interest rate risk and credit risk. Convertible securities also react to changes in the value of the common stock into which they convert, and are thus subject to equity risk.

• Equity Risk
  
  Since it purchases equity securities, the Fund is subject to the risk that stock prices will fall over short or extended periods of time. Historically, the equity markets have moved in cycles, and the value of the Fund’s securities may fluctuate drastically from day to day. Individual companies may report poor results or be negatively affected by industry and/or economic trends and developments. The prices of securities issued by such companies may suffer a decline in response. These factors contribute to price volatility.

• Fixed Income Risk
  
  The prices of fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers. Generally, fixed income securities will decrease in value if interest rates rise and vice versa. The volatility of lower-rated securities is even greater than that of higher-rated securities. Also, longer-term and longer-duration securities are generally more volatile, so the maturity and duration of securities affects their risk. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are at, or near, historic lows. In addition, there is the possibility that an issuer will fail to make timely payments of interest or principal or go bankrupt. The lower the rating of the security, the greater the credit risk.

• Foreign Securities Risk
  
  Foreign securities involve additional risks such as currency fluctuations, economic or financial instability, lack of timely or reliable financial information, and unfavorable political or legal developments. While depositary receipts provide an alternative to directly purchasing the underlying foreign securities in their respective national markets and currencies, investments in depositary receipts continue to be subject to many of the risks associated with investing directly in foreign securities.

• High Yield Risk
  
  Compared with investment-grade bonds, high yield bonds carry a greater risk of default or downgrade and are more volatile. High yield bonds may also be less liquid and more difficult to value.

• Investment Style Risk
  
  The Fund may invest in either “growth” and/or “value” stocks. The value of growth stocks may be more sensitive to changes in current or expected earnings than the prices of other types of securities. With value stocks, the assessment of a company’s value or prospects for exceeding earnings expectations or market conditions may be wrong. In addition, over time, growth or value stocks may go in and out of favor, causing the Fund to sometimes underperform other funds that use different investment approaches.

• Management Risk
  
  The Fund is subject to the risk that a strategy used by the Fund’s management may fail to produce the intended result.

• Preferred Stock Risk
  
  Preferred stock is a type of stock that generally pays dividends at a specified rate and that has preference over common stock in the payment of dividends and the liquidation of assets. Preferred stock does not ordinarily carry voting rights. The price of a preferred stock is generally determined by earnings, type of products or services, projected growth rates, experience of management, liquidity, and general market conditions of the markets on which the stock trades. The most significant risks associated with investments in preferred stock include the risk of losses attributable to changes in interest rates and equity risk.

• Quantitative Model Risk
  
  Investments selected using quantitative methods may perform differently from the market as a whole. There can be no assurance that these methodologies will enable the Fund to achieve its objective.

• Small- and Mid-Cap Company Securities Risk
  
  Investments in small- and mid-capitalization companies (small- and mid-cap companies) often involve greater risks than investments in larger, more established companies (larger companies) because small and mid-cap companies tend to have less predictable earnings and may lack the management experience, financial resources, product diversification and competitive strengths of larger companies, and securities of small- and mid-cap companies may be less liquid and more volatile than the securities of larger companies.

Risk Lose Money [Text]

rr_RiskLoseMoney

You could lose money by investing in the Fund.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

A Fund share is not a bank deposit and it is not insured or guaranteed by the FDIC or any government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

PERFORMANCE INFORMATION

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The bar chart and table that follow illustrate the risks and volatility of an investment in Class I Shares of the Fund. Prior to February 1, 2010, the Fund’s principal investment strategy was to invest at least 80% of its net assets (plus any borrowings for investment purposes) in large-cap equity securities; therefore, the past performance shown below may have differed had the Fund’s current investment strategy been in effect. Of course, the Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. Updated performance information is available on the Fund’s website at www.bishopstreetfunds.com or by calling 1-800-262-9565.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The bar chart and table that follow illustrate the risks and volatility of an investment in Class I Shares of the Fund.

Performance Availability Phone [Text]

rr_PerformanceAvailabilityPhone

1-800-262-9565

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.bishopstreetfunds.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Of course, the Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.

Bar Chart Narrative [Text Block]

rr_BarChartNarrativeTextBlock

The following bar chart shows changes in performance of the Fund’s Class I Shares from calendar year to calendar year.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Best Quarter	Worst Quarter
17.39%	(24.61)%
(06/30/09)	(12/31/08)

The performance information shown above is based on a calendar year. The Fund’s performance information from 1/1/18 to 3/31/18 was (2.28)%.

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns
(for the periods ended December 31, 2017)

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (IRAs).

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

The following table compares the Fund’s average annual total returns to those of the Russell 1000^® Value Index. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (IRAs).

DIVIDEND VALUE FUND | CLASS I SHARES

Risk/Return:

rr_RiskReturnAbstract

Shareholder Fees (fees paid directly from your investment)

rr_ShareholderFeeOther

none

Management Fees

rr_ManagementFeesOverAssets

0.74%

Shareholder Servicing Fees

rr_Component1OtherExpensesOverAssets

0.25%

Other Operating Expenses

rr_Component2OtherExpensesOverAssets

0.47%

Other Expenses

rr_OtherExpensesOverAssets

0.72%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.46%

Less Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.41%)

^[1]

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

1.05%

1 Year

rr_ExpenseExampleYear01

$ 107

3 Years

rr_ExpenseExampleYear03

421

5 Years

rr_ExpenseExampleYear05

758

10 Years

rr_ExpenseExampleYear10

$ 1,711

2008

rr_AnnualReturn2008

(42.02%)

2009

rr_AnnualReturn2009

31.28%

2010

rr_AnnualReturn2010

13.07%

2011

rr_AnnualReturn2011

6.53%

2012

rr_AnnualReturn2012

11.07%

2013

rr_AnnualReturn2013

28.84%

2014

rr_AnnualReturn2014

12.08%

2015

rr_AnnualReturn2015

0.44%

2016

rr_AnnualReturn2016

13.16%

2017

rr_AnnualReturn2017

20.47%

Year to Date Return, Label

rr_YearToDateReturnLabel

The Fund’s performance information

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Mar. 31, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

(2.28%)

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

17.39%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(24.61%)

1 Year

rr_AverageAnnualReturnYear01

20.47%

5 Years

rr_AverageAnnualReturnYear05

14.61%

10 Years

rr_AverageAnnualReturnYear10

7.25%

Since Inception

rr_AverageAnnualReturnSinceInception

7.24%

Inception Date

rr_AverageAnnualReturnInceptionDate

May 03, 2006

DIVIDEND VALUE FUND | Return After Taxes on Distributions | CLASS I SHARES

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

17.71%

5 Years

rr_AverageAnnualReturnYear05

13.50%

10 Years

rr_AverageAnnualReturnYear10

6.59%

Since Inception

rr_AverageAnnualReturnSinceInception

6.54%

Inception Date

rr_AverageAnnualReturnInceptionDate

May 03, 2006

DIVIDEND VALUE FUND | Return After Taxes on Distributions and Sale of Fund Shares | CLASS I SHARES

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

13.67%

5 Years

rr_AverageAnnualReturnYear05

11.55%

10 Years

rr_AverageAnnualReturnYear10

5.75%

Since Inception

rr_AverageAnnualReturnSinceInception

5.76%

Inception Date

rr_AverageAnnualReturnInceptionDate

May 03, 2006

DIVIDEND VALUE FUND | Russell 1000® Value Index Return (reflects no deduction for fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

13.66%

5 Years

rr_AverageAnnualReturnYear05

14.04%

10 Years

rr_AverageAnnualReturnYear10

7.10%

Since Inception

rr_AverageAnnualReturnSinceInception

7.12%

Inception Date

rr_AverageAnnualReturnInceptionDate

May 03, 2006

[1] Bishop Street Capital Management (Adviser) has contractually agreed to reduce fees and reimburse expenses to the extent necessary to keep Total Annual Fund Operating Expenses for Class I Shares (excluding interest, taxes, brokerage commissions, acquired fund fees and expenses, and extraordinary expenses (collectively, excluded expenses)) from exceeding 1.05% of the Fund’s average daily net assets through April 30, 2019 (Contractual Expense Limitation). In addition, the Board of Trustees (Board) of Bishop Street Funds (Trust) may permit the Adviser to receive from the Fund the difference between the Total Annual Fund Operating Expenses (not including excluded expenses) and the Contractual Expense Limitation to recoup all or a portion of its prior fee reductions or expense reimbursements made during the three-year period preceding the recoupment if at any point Total Annual Fund Operating Expenses (not including excluded expenses) are below the Contractual Expense Limitation: (i) at the time of the fee waiver and/or expense reimbursement; and (ii) at the time of the recoupment. This agreement may be terminated: (i) by the Board, for any reason at any time; or (ii) by the Adviser, upon ninety (90) days’ prior written notice to the Trust, effective as of the close of business on April 30, 2019.

XML

HIGH GRADE INCOME FUND

BISHOP STREET HIGH GRADE INCOME FUND

INVESTMENT OBJECTIVE

The investment objective of the Fund is to provide high total return.

FEES AND EXPENSES

This table describes the fees and expenses that you may pay if you buy and hold Class I Shares of the Fund.

Shareholder Fees
(fees paid directly from your investment)

Shareholder Fees	HIGH GRADE INCOME FUND CLASS I SHARES USD ($)
Shareholder Fees (fees paid directly from your investment)	none

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

Annual Fund Operating Expenses	HIGH GRADE INCOME FUND CLASS I SHARES
Management Fees	0.55%
Other Expenses	0.74%
Shareholder Servicing Fees	0.25%
Other Operating Expenses	0.49%
Total Annual Fund Operating Expenses	1.29%
Less Fee Waivers and/or Expense Reimbursements	(0.53%)	[1]
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements	0.76%

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 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 (including one year of capped expenses in each period) remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	1 Year	3 Years	5 Years	10 Years
HIGH GRADE INCOME FUND | CLASS I SHARES | USD ($)	78	357	657	1,510

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 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 total annual Fund operating expenses or in the example, affect the Fund’s performance. During its most recent fiscal year, the Fund’s portfolio turnover rate was 33% of the average value of its portfolio.

PRINCIPAL INVESTMENT STRATEGIES

In seeking superior long-term performance, the Fund primarily invests at least 80% of its net assets (plus any borrowings for investment purposes) in high grade U.S. dollar-denominated debt obligations of domestic corporations and the U.S. government, its agencies or instrumentalities. High grade debt obligations are those rated in the three highest ratings categories by S&P or other nationally recognized statistical rating organizations, and include mortgage-backed, variable and floating rate instruments. The Fund may also invest up to 20% of its net assets in investment grade securities (securities rated BBB by S&P, BAA by Moody’s, or unrated equivalent). The portfolio management team anticipates that the Fund will maintain an average weighted maturity of 6 to 8 years. In determining whether to buy, sell or hold a security, the portfolio management team analyzes the security relative to the risk characteristics of the portfolio as a whole. The portfolio management team considers several factors when selecting securities for the Fund’s portfolio, including the current state of a bond’s issuer and the possibility that an improvement or deterioration in its financial health may result in, respectively, an upgrade or downgrade of the issuer’s credit rating. The portfolio management team may continue to hold a bond that has been downgraded if it believes it is in the best interest of the Fund’s shareholders. The portfolio management team may choose to sell a bond based on its analysis of the economy, the forecast on interest rates, sector and security valuations, and credit rating concerns.

PRINCIPAL RISKS

As with all mutual funds, there is no guarantee that the Fund will achieve its investment objective. You could lose money by investing in the Fund. A Fund share is not a bank deposit and it is not insured or guaranteed by the FDIC or any government agency. In addition to this risk, the Fund is subject to additional risks that may affect the value of its shares, including, in alphabetical order:

• Fixed Income Risk
  
  The prices of fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments. Generally, fixed income securities will decrease in value if interest rates rise and vice versa. The volatility of lower-rated securities is even greater than that of higher-rated securities. Also, longer-term and longer-duration securities are generally more volatile, so the maturity and duration of securities affects their risk. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are at, or near, historic lows. In addition, there is the possibility that an issuer will fail to make timely payments of interest or principal or go bankrupt.

• Liquidity Risk
  
  Liquidity risk is the risk that certain securities may be difficult or impossible to sell at the time and the price that the Fund would like.

• Management Risk
  
  The Fund is subject to the risk that a strategy used by the Fund’s management may fail to produce the intended result.

• Mortgage-Backed Securities Risk
  
  The mortgages underlying mortgage-backed securities may be paid off early, which makes it difficult to determine their actual maturity and therefore calculate how they will respond to changes in interest rates. The Fund may have to reinvest prepaid amounts at lower interest rates.

• Municipal Issuer Risk
  
  There may be economic or political changes that impact the ability of municipal issuers to repay principal and to make interest payments on municipal securities. Changes in the financial condition or credit rating of municipal issuers also may adversely affect the value of the Fund’s municipal securities.

• U.S. Government Securities Risk
  
  The Fund’s investment in U.S. government obligations may include securities issued or guaranteed as to principal and interest by the U.S. government, or its agencies or instrumentalities. Payment of principal and interest on U.S. government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. There can be no assurance that the U.S. government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so. In addition, U.S. government securities are not guaranteed against price movements due to changing interest rates.

• Valuation Risk
  
  Valuation risk is the risk that certain securities may be difficult to value.

PERFORMANCE INFORMATION

The bar chart and table that follow illustrate the risks and volatility of an investment in Class I Shares of the Fund. Of course, the Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. Updated performance information is available on the Fund’s website at www.bishopstreetfunds.com or by calling 1-800-262-9565.

The following bar chart shows changes in performance of the Fund’s Class I Shares from calendar year to calendar year.

Best Quarter	Worst Quarter
6.88%	(3.70)%
(12/31/08)	(12/31/16)

The performance information shown above is based on a calendar year. The Fund’s performance information from 1/1/18 to 3/31/18 was (2.02)%.

The following table compares the Fund’s average annual total returns to those of the Bloomberg Barclays Capital U.S. Government/Credit Index. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (IRAs).

Average Annual Total Returns
(for the periods ended December 31, 2017)

Average Annual Total Returns - HIGH GRADE INCOME FUND	1 Year	5 Years	10 Years
CLASS I SHARES	3.56%	1.65%	4.24%
CLASS I SHARES | Fund Return After Taxes on Distributions	2.21%	0.39%	2.73%
CLASS I SHARES | Fund Return After Taxes on Distributions and Sale of Fund Shares	2.26%	0.79%	2.87%
Bloomberg Barclays Capital U.S. Government/Credit Index Return (reflects no deduction for fees, expenses or taxes)	4.00%	2.13%	4.08%

[1] Bishop Street Capital Management (Adviser) has contractually agreed to reduce fees and reimburse expenses to the extent necessary to keep Total Annual Fund Operating Expenses for Class I Shares (excluding interest, taxes, brokerage commissions, acquired fund fees and expenses, and extraordinary expenses (collectively, excluded expenses)) from exceeding 0.76% of the Fund's average daily net assets through April 30, 2019 (Contractual Expense Limitation). In addition, the Board of Trustees (Board) of Bishop Street Funds (Trust) may permit the Adviser to receive from the Fund the difference between the Total Annual Fund Operating Expenses (not including excluded expenses) and the Contractual Expense Limitation to recoup all or a portion of its prior fee reductions or expense reimbursements made during the three-year period preceding the recoupment if at any point Total Annual Fund Operating Expenses (not including excluded expenses) are below the Contractual Expense Limitation: (i) at the time of the fee waiver and/or expense reimbursement; and (ii) at the time of the recoupment. This agreement may be terminated: (i) by the Board, for any reason at any time; or (ii) by the Adviser, upon ninety (90) days' prior written notice to the Trust, effective as of the close of business on April 30, 2019.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

BISHOP STREET FUNDS

Prospectus Date

rr_ProspectusDate

May 01, 2018

HIGH GRADE INCOME FUND

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

BISHOP STREET HIGH GRADE INCOME FUND

Objective [Heading]

rr_ObjectiveHeading

INVESTMENT OBJECTIVE

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The investment objective of the Fund is to provide high total return.

Expense [Heading]

rr_ExpenseHeading

FEES AND EXPENSES

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold Class I Shares of the Fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees
(fees paid directly from your investment)

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)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

April 30, 2019

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 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 total annual Fund operating expenses or in the example, affect the Fund’s performance. During its most recent fiscal year, the Fund’s portfolio turnover rate was 33% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

33.00%

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 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 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 (including one year of capped expenses in each period) remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

PRINCIPAL INVESTMENT STRATEGIES

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

In seeking superior long-term performance, the Fund primarily invests at least 80% of its net assets (plus any borrowings for investment purposes) in high grade U.S. dollar-denominated debt obligations of domestic corporations and the U.S. government, its agencies or instrumentalities. High grade debt obligations are those rated in the three highest ratings categories by S&P or other nationally recognized statistical rating organizations, and include mortgage-backed, variable and floating rate instruments. The Fund may also invest up to 20% of its net assets in investment grade securities (securities rated BBB by S&P, BAA by Moody’s, or unrated equivalent). The portfolio management team anticipates that the Fund will maintain an average weighted maturity of 6 to 8 years. In determining whether to buy, sell or hold a security, the portfolio management team analyzes the security relative to the risk characteristics of the portfolio as a whole. The portfolio management team considers several factors when selecting securities for the Fund’s portfolio, including the current state of a bond’s issuer and the possibility that an improvement or deterioration in its financial health may result in, respectively, an upgrade or downgrade of the issuer’s credit rating. The portfolio management team may continue to hold a bond that has been downgraded if it believes it is in the best interest of the Fund’s shareholders. The portfolio management team may choose to sell a bond based on its analysis of the economy, the forecast on interest rates, sector and security valuations, and credit rating concerns.

Risk [Heading]

rr_RiskHeading

PRINCIPAL RISKS

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

As with all mutual funds, there is no guarantee that the Fund will achieve its investment objective. You could lose money by investing in the Fund. A Fund share is not a bank deposit and it is not insured or guaranteed by the FDIC or any government agency. In addition to this risk, the Fund is subject to additional risks that may affect the value of its shares, including, in alphabetical order:

• Fixed Income Risk
  
  The prices of fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments. Generally, fixed income securities will decrease in value if interest rates rise and vice versa. The volatility of lower-rated securities is even greater than that of higher-rated securities. Also, longer-term and longer-duration securities are generally more volatile, so the maturity and duration of securities affects their risk. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are at, or near, historic lows. In addition, there is the possibility that an issuer will fail to make timely payments of interest or principal or go bankrupt.

• Liquidity Risk
  
  Liquidity risk is the risk that certain securities may be difficult or impossible to sell at the time and the price that the Fund would like.

• Management Risk
  
  The Fund is subject to the risk that a strategy used by the Fund’s management may fail to produce the intended result.

• Mortgage-Backed Securities Risk
  
  The mortgages underlying mortgage-backed securities may be paid off early, which makes it difficult to determine their actual maturity and therefore calculate how they will respond to changes in interest rates. The Fund may have to reinvest prepaid amounts at lower interest rates.

• Municipal Issuer Risk
  
  There may be economic or political changes that impact the ability of municipal issuers to repay principal and to make interest payments on municipal securities. Changes in the financial condition or credit rating of municipal issuers also may adversely affect the value of the Fund’s municipal securities.

• U.S. Government Securities Risk
  
  The Fund’s investment in U.S. government obligations may include securities issued or guaranteed as to principal and interest by the U.S. government, or its agencies or instrumentalities. Payment of principal and interest on U.S. government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. There can be no assurance that the U.S. government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so. In addition, U.S. government securities are not guaranteed against price movements due to changing interest rates.

• Valuation Risk
  
  Valuation risk is the risk that certain securities may be difficult to value.

Risk Lose Money [Text]

rr_RiskLoseMoney

You could lose money by investing in the Fund.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

A Fund share is not a bank deposit and it is not insured or guaranteed by the FDIC or any government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

PERFORMANCE INFORMATION

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The bar chart and table that follow illustrate the risks and volatility of an investment in Class I Shares of the Fund. Of course, the Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. Updated performance information is available on the Fund’s website at www.bishopstreetfunds.com or by calling 1-800-262-9565.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The bar chart and table that follow illustrate the risks and volatility of an investment in Class I Shares of the Fund.

Performance Availability Phone [Text]

rr_PerformanceAvailabilityPhone

1-800-262-9565

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.bishopstreetfunds.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Of course, the Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.

Bar Chart Narrative [Text Block]

rr_BarChartNarrativeTextBlock

The following bar chart shows changes in performance of the Fund’s Class I Shares from calendar year to calendar year.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Best Quarter	Worst Quarter
6.88%	(3.70)%
(12/31/08)	(12/31/16)

The performance information shown above is based on a calendar year. The Fund’s performance information from 1/1/18 to 3/31/18 was (2.02)%.

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns
(for the periods ended December 31, 2017)

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (IRAs).

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

The following table compares the Fund’s average annual total returns to those of the Bloomberg Barclays Capital U.S. Government/Credit Index. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (IRAs).

HIGH GRADE INCOME FUND | CLASS I SHARES

Risk/Return:

rr_RiskReturnAbstract

Shareholder Fees (fees paid directly from your investment)

rr_ShareholderFeeOther

none

Management Fees

rr_ManagementFeesOverAssets

0.55%

Shareholder Servicing Fees

rr_Component1OtherExpensesOverAssets

0.25%

Other Operating Expenses

rr_Component2OtherExpensesOverAssets

0.49%

Other Expenses

rr_OtherExpensesOverAssets

0.74%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.29%

Less Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.53%)

^[1]

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.76%

1 Year

rr_ExpenseExampleYear01

$ 78

3 Years

rr_ExpenseExampleYear03

357

5 Years

rr_ExpenseExampleYear05

657

10 Years

rr_ExpenseExampleYear10

$ 1,510

2008

rr_AnnualReturn2008

8.53%

2009

rr_AnnualReturn2009

8.41%

2010

rr_AnnualReturn2010

5.63%

2011

rr_AnnualReturn2011

6.94%

2012

rr_AnnualReturn2012

5.05%

2013

rr_AnnualReturn2013

(2.69%)

2014

rr_AnnualReturn2014

5.77%

2015

rr_AnnualReturn2015

0.37%

2016

rr_AnnualReturn2016

1.47%

2017

rr_AnnualReturn2017

3.56%

Year to Date Return, Label

rr_YearToDateReturnLabel

The Fund’s performance information

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Mar. 31, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

(2.02%)

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Dec. 31, 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

6.88%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2016

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(3.70%)

1 Year

rr_AverageAnnualReturnYear01

3.56%

5 Years

rr_AverageAnnualReturnYear05

1.65%

10 Years

rr_AverageAnnualReturnYear10

4.24%

HIGH GRADE INCOME FUND | Fund Return After Taxes on Distributions | CLASS I SHARES

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

2.21%

5 Years

rr_AverageAnnualReturnYear05

0.39%

10 Years

rr_AverageAnnualReturnYear10

2.73%

HIGH GRADE INCOME FUND | Fund Return After Taxes on Distributions and Sale of Fund Shares | CLASS I SHARES

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

2.26%

5 Years

rr_AverageAnnualReturnYear05

0.79%

10 Years

rr_AverageAnnualReturnYear10

2.87%

HIGH GRADE INCOME FUND | Bloomberg Barclays Capital U.S. Government/Credit Index Return (reflects no deduction for fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

4.00%

5 Years

rr_AverageAnnualReturnYear05

2.13%

10 Years

rr_AverageAnnualReturnYear10

4.08%

[1] Bishop Street Capital Management (Adviser) has contractually agreed to reduce fees and reimburse expenses to the extent necessary to keep Total Annual Fund Operating Expenses for Class I Shares (excluding interest, taxes, brokerage commissions, acquired fund fees and expenses, and extraordinary expenses (collectively, excluded expenses)) from exceeding 0.76% of the Fund's average daily net assets through April 30, 2019 (Contractual Expense Limitation). In addition, the Board of Trustees (Board) of Bishop Street Funds (Trust) may permit the Adviser to receive from the Fund the difference between the Total Annual Fund Operating Expenses (not including excluded expenses) and the Contractual Expense Limitation to recoup all or a portion of its prior fee reductions or expense reimbursements made during the three-year period preceding the recoupment if at any point Total Annual Fund Operating Expenses (not including excluded expenses) are below the Contractual Expense Limitation: (i) at the time of the fee waiver and/or expense reimbursement; and (ii) at the time of the recoupment. This agreement may be terminated: (i) by the Board, for any reason at any time; or (ii) by the Adviser, upon ninety (90) days' prior written notice to the Trust, effective as of the close of business on April 30, 2019.

XML

Class I Shares | HAWAII MUNICIPAL BOND FUND

BISHOP STREET HAWAII MUNICIPAL BOND FUND

INVESTMENT OBJECTIVE

The investment objective of the Fund is to provide high current income exempt from federal and Hawaii state income taxes.

FEES AND EXPENSES

This table describes the fees and expenses that you may pay if you buy and hold Class I Shares of the Fund.

Shareholder Fees
(fees paid directly from your investment)

Shareholder Fees	Class I Shares HAWAII MUNICIPAL BOND FUND CLASS I SHARES USD ($)
Shareholder Fees (fees paid directly from your investment)	none

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

Annual Fund Operating Expenses	Class I Shares HAWAII MUNICIPAL BOND FUND CLASS I SHARES
Management Fees	0.35%
Other Expenses	0.69%
Shareholder Servicing Fees	0.25%
Other Operating Expenses	0.44%
Total Annual Fund Operating Expenses	1.04%
Less Fee Waivers and/or Expense Reimbursements	(0.49%)	[1]
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements	0.55%

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 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 (including one year of capped expenses in each period) remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	1 Year	3 Years	5 Years	10 Years
Class I Shares | HAWAII MUNICIPAL BOND FUND | CLASS I SHARES | USD ($)	56	282	526	1,227

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 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 total annual Fund operating expenses or in the example, affect the Fund’s performance. During its most recent fiscal year, the Fund’s portfolio turnover rate was 25% of the average value of its portfolio.

PRINCIPAL INVESTMENT STRATEGIES

The Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in investment grade municipal bonds, the interest from which is exempt from regular federal and Hawaii state income taxes. While the Adviser attempts to maximize the portion of the Fund’s assets invested in Hawaii issues, the Fund may also invest in municipal bonds issued by other U.S. states, territories and possessions. There is no restriction upon the amount of the Fund’s assets that may be invested in obligations that pay income subject to the federal alternative minimum tax. To the extent that the Fund invests in securities subject to the alternative minimum tax, the income received from these securities could be taxable. There is no limit on the average maturity of the Fund’s portfolio. The Adviser will use its judgment to invest in securities that will provide a high level of current income in light of current market conditions. In making a determination to buy, sell or hold a security, the portfolio managers give special consideration to the relative value of the security in comparison to the available alternatives, while remaining consistent with the objectives of the portfolio. The portfolio management team considers several factors when selecting securities for the Fund’s portfolio, including the current state of a bond’s issuer and the possibility that an improvement or deterioration in its financial health may result in, respectively, an upgrade or downgrade of the issuer’s credit rating. The portfolio management team may continue to hold a bond that has been downgraded if it believes it is in the best interest of the Fund’s shareholders. The portfolio management team may choose to sell a bond based on its analysis of the economy and any direct impact on budget cash flows, debt ratios, and credit ratings.

PRINCIPAL RISKS

As with all mutual funds, there is no guarantee that the Fund will achieve its investment objective. You could lose money by investing in the Fund. A Fund share is not a bank deposit and it is not insured or guaranteed by the FDIC or any government agency. In addition to this risk, the Fund is subject to additional risks that may affect the value of its shares, including, in alphabetical order:

• Concentration Risk
  
  The Fund’s concentration of investments in securities of issuers located in Hawaii subjects the Fund to economic conditions and government policies within that state. As a result, the Fund will be more susceptible to factors that adversely affect issuers of Hawaii obligations than a mutual fund that does not have as great a concentration in Hawaii.

• Fixed Income Risk
  
  The prices of fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments. Generally, fixed income securities will decrease in value if interest rates rise and vice versa. The volatility of lower-rated securities is even greater than that of higher-rated securities. Also, longer-term and longer-duration securities are generally more volatile, so the maturity and duration of securities affects their risk. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are at, or near, historic lows. In addition, there is the possibility that an issuer will fail to make timely payments of interest or principal or go bankrupt.

• Liquidity Risk
  
  Liquidity risk is the risk that certain securities may be difficult or impossible to sell at the time and the price that the Fund would like.

• Management Risk
  
  The Fund is subject to the risk that a strategy used by the Fund’s management may fail to produce the intended result.

• Municipal Issuer Risk
  
  There may be economic or political changes that impact the ability of municipal issuers to repay principal and to make interest payments on municipal securities. Changes in the financial condition or credit rating of municipal issuers also may adversely affect the value of the Fund’s securities.

• Non-Diversification Risk
  
  The Fund is non-diversified, which means that it may invest in the securities of relatively few issuers. As a result, the Fund may be more susceptible to a single adverse economic or political/regulatory occurrence affecting one or more of these issuers, and may experience increased volatility due to its investments in those securities.

• Tax Risk
  
  Income from municipal bonds held by the Fund could be declared taxable because of unfavorable changes in tax laws, adverse interpretations by the Internal Revenue Service (IRS) or state tax authorities, or noncompliant conduct of a bond issuer. In addition, a portion of the Fund’s otherwise exempt-interest dividends may be taxable to those shareholders subject to the federal alternative minimum (“AMT”) tax.

• Valuation Risk
  
  Valuation risk is the risk that certain securities may be difficult to value.

PERFORMANCE INFORMATION

The bar chart and table that follow illustrate the risks and volatility of an investment in Class I Shares of the Fund. Of course, the Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. Updated performance information is available on the Fund’s website at www.bishopstreetfunds.com or by calling 1-800-262-9565.

The following bar chart shows changes in performance of the Fund’s Class I Shares from calendar year to calendar year.

Best Quarter	Worst Quarter
5.33%	(4.11)%
(09/30/09)	(12/31/10)

The performance information shown above is based on a calendar year. The Fund’s Class I Shares’ performance information from 1/1/18 to 3/31/18 was (1.20)%.

The following table compares the Fund’s Class I Shares’ average annual total returns to those of the Bloomberg Barclays Capital Municipal Bond Index and the ICE BofAML 1-22 Year U.S. Municipal Securities Index. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (IRAs).

Returns after taxes on distributions and sale of Fund shares may be higher than before tax returns when a net capital loss occurs upon the redemption of Fund shares.

Average Annual Total Returns
(for the periods ended December 31, 2017)

Average Annual Total Returns - Class I Shares - HAWAII MUNICIPAL BOND FUND		1 Year	5 Years	10 Years
CLASS I SHARES		3.74%	1.94%	3.33%
CLASS I SHARES | Fund Return After Taxes on Distributions		3.73%	1.84%	3.27%
CLASS I SHARES | Fund Return After Taxes on Distributions and Sale of Fund Shares		3.19%	2.07%	3.28%
Bloomberg Barclays Capital Municipal Bond Index Return (reflects no deduction for fees, expenses or taxes)	[1]	5.45%	3.02%	4.46%
ICE BofAML 1-22 Year U.S. Municipal Securities Index (reflects no deduction for fees, expenses or taxes)	[1]	4.53%	2.71%	4.26%

[1] Bishop Street Capital Management (Adviser) has contractually agreed to reduce fees and reimburse expenses to the extent necessary to keep Total Annual Fund Operating Expenses for Class I Shares (excluding interest, taxes, brokerage commissions, acquired fund fees and expenses, and extraordinary expenses (collectively, excluded expenses)) from exceeding 0.55% of the Fund's average daily net assets through April 30, 2019 (Contractual Expense Limitation). In addition, the Board of Trustees (Board) of Bishop Street Funds (Trust) may permit the Adviser to receive from the Fund the difference between the Total Annual Fund Operating Expenses (not including excluded expenses) and the Contractual Expense Limitation to recoup all or a portion of its prior fee reductions or expense reimbursements made during the three-year period preceding the recoupment if at any point Total Annual Fund Operating Expenses (not including excluded expenses) are below the Contractual Expense Limitation: (i) at the time of the fee waiver and/or expense reimbursement; and (ii) at the time of the recoupment. This agreement may be terminated: (i) by the Board, for any reason at any time; or (ii) by the Adviser, upon ninety (90) days' prior written notice to the Trust, effective as of the close of business on April 30, 2019.

[1] As of May 1, 2018, the Fund's benchmark changed from the Bloomberg Barclays Capital Municipal Bond Index to the ICE BofAML 1-22 Year U.S. Municipal Securities Index to provide a more useful comparison of Fund performance.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

BISHOP STREET FUNDS

Prospectus Date

rr_ProspectusDate

May 01, 2018

Class I Shares | HAWAII MUNICIPAL BOND FUND

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

BISHOP STREET HAWAII MUNICIPAL BOND FUND

Objective [Heading]

rr_ObjectiveHeading

INVESTMENT OBJECTIVE

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The investment objective of the Fund is to provide high current income exempt from federal and Hawaii state income taxes.

Expense [Heading]

rr_ExpenseHeading

FEES AND EXPENSES

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold Class I Shares of the Fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees
(fees paid directly from your investment)

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)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

April 30, 2019

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 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 total annual Fund operating expenses or in the example, affect the Fund’s performance. During its most recent fiscal year, the Fund’s portfolio turnover rate was 25% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

25.00%

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 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 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 (including one year of capped expenses in each period) remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

PRINCIPAL INVESTMENT STRATEGIES

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in investment grade municipal bonds, the interest from which is exempt from regular federal and Hawaii state income taxes. While the Adviser attempts to maximize the portion of the Fund’s assets invested in Hawaii issues, the Fund may also invest in municipal bonds issued by other U.S. states, territories and possessions. There is no restriction upon the amount of the Fund’s assets that may be invested in obligations that pay income subject to the federal alternative minimum tax. To the extent that the Fund invests in securities subject to the alternative minimum tax, the income received from these securities could be taxable. There is no limit on the average maturity of the Fund’s portfolio. The Adviser will use its judgment to invest in securities that will provide a high level of current income in light of current market conditions. In making a determination to buy, sell or hold a security, the portfolio managers give special consideration to the relative value of the security in comparison to the available alternatives, while remaining consistent with the objectives of the portfolio. The portfolio management team considers several factors when selecting securities for the Fund’s portfolio, including the current state of a bond’s issuer and the possibility that an improvement or deterioration in its financial health may result in, respectively, an upgrade or downgrade of the issuer’s credit rating. The portfolio management team may continue to hold a bond that has been downgraded if it believes it is in the best interest of the Fund’s shareholders. The portfolio management team may choose to sell a bond based on its analysis of the economy and any direct impact on budget cash flows, debt ratios, and credit ratings.

Risk [Heading]

rr_RiskHeading

PRINCIPAL RISKS

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

As with all mutual funds, there is no guarantee that the Fund will achieve its investment objective. You could lose money by investing in the Fund. A Fund share is not a bank deposit and it is not insured or guaranteed by the FDIC or any government agency. In addition to this risk, the Fund is subject to additional risks that may affect the value of its shares, including, in alphabetical order:

• Concentration Risk
  
  The Fund’s concentration of investments in securities of issuers located in Hawaii subjects the Fund to economic conditions and government policies within that state. As a result, the Fund will be more susceptible to factors that adversely affect issuers of Hawaii obligations than a mutual fund that does not have as great a concentration in Hawaii.

• Fixed Income Risk
  
  The prices of fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments. Generally, fixed income securities will decrease in value if interest rates rise and vice versa. The volatility of lower-rated securities is even greater than that of higher-rated securities. Also, longer-term and longer-duration securities are generally more volatile, so the maturity and duration of securities affects their risk. Risks associated with rising interest rates are heightened given that interest rates in the U.S. are at, or near, historic lows. In addition, there is the possibility that an issuer will fail to make timely payments of interest or principal or go bankrupt.

• Liquidity Risk
  
  Liquidity risk is the risk that certain securities may be difficult or impossible to sell at the time and the price that the Fund would like.

• Management Risk
  
  The Fund is subject to the risk that a strategy used by the Fund’s management may fail to produce the intended result.

• Municipal Issuer Risk
  
  There may be economic or political changes that impact the ability of municipal issuers to repay principal and to make interest payments on municipal securities. Changes in the financial condition or credit rating of municipal issuers also may adversely affect the value of the Fund’s securities.

• Non-Diversification Risk
  
  The Fund is non-diversified, which means that it may invest in the securities of relatively few issuers. As a result, the Fund may be more susceptible to a single adverse economic or political/regulatory occurrence affecting one or more of these issuers, and may experience increased volatility due to its investments in those securities.

• Tax Risk
  
  Income from municipal bonds held by the Fund could be declared taxable because of unfavorable changes in tax laws, adverse interpretations by the Internal Revenue Service (IRS) or state tax authorities, or noncompliant conduct of a bond issuer. In addition, a portion of the Fund’s otherwise exempt-interest dividends may be taxable to those shareholders subject to the federal alternative minimum (“AMT”) tax.

• Valuation Risk
  
  Valuation risk is the risk that certain securities may be difficult to value.

Risk Lose Money [Text]

rr_RiskLoseMoney

You could lose money by investing in the Fund.

Risk Nondiversified Status [Text]

rr_RiskNondiversifiedStatus

• Non-Diversification Risk
  
  The Fund is non-diversified, which means that it may invest in the securities of relatively few issuers. As a result, the Fund may be more susceptible to a single adverse economic or political/regulatory occurrence affecting one or more of these issuers, and may experience increased volatility due to its investments in those securities.

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

A Fund share is not a bank deposit and it is not insured or guaranteed by the FDIC or any government agency.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

PERFORMANCE INFORMATION

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The bar chart and table that follow illustrate the risks and volatility of an investment in Class I Shares of the Fund. Of course, the Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. Updated performance information is available on the Fund’s website at www.bishopstreetfunds.com or by calling 1-800-262-9565.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The bar chart and table that follow illustrate the risks and volatility of an investment in Class I Shares of the Fund.

Performance Availability Phone [Text]

rr_PerformanceAvailabilityPhone

1-800-262-9565

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.bishopstreetfunds.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Of course, the Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.

Bar Chart Narrative [Text Block]

rr_BarChartNarrativeTextBlock

The following bar chart shows changes in performance of the Fund’s Class I Shares from calendar year to calendar year.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Best Quarter	Worst Quarter
5.33%	(4.11)%
(09/30/09)	(12/31/10)

The performance information shown above is based on a calendar year. The Fund’s Class I Shares’ performance information from 1/1/18 to 3/31/18 was (1.20)%.

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns
(for the periods ended December 31, 2017)

Performance Table Market Index Changed

rr_PerformanceTableMarketIndexChanged

As of May 1, 2018, the Fund's benchmark changed from the Bloomberg Barclays Capital Municipal Bond Index to the ICE BofAML 1-22 Year U.S. Municipal Securities Index to provide a more useful comparison of Fund performance.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (IRAs).

Performance Table Explanation after Tax Higher

rr_PerformanceTableExplanationAfterTaxHigher

Returns after taxes on distributions and sale of Fund shares may be higher than before tax returns when a net capital loss occurs upon the redemption of Fund shares.

Performance Table Narrative

rr_PerformanceTableNarrativeTextBlock

The following table compares the Fund’s Class I Shares’ average annual total returns to those of the Bloomberg Barclays Capital Municipal Bond Index and the ICE BofAML 1-22 Year U.S. Municipal Securities Index. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (IRAs).

Returns after taxes on distributions and sale of Fund shares may be higher than before tax returns when a net capital loss occurs upon the redemption of Fund shares.

Class I Shares | HAWAII MUNICIPAL BOND FUND | CLASS I SHARES

Risk/Return:

rr_RiskReturnAbstract

Shareholder Fees (fees paid directly from your investment)

rr_ShareholderFeeOther

none

Management Fees

rr_ManagementFeesOverAssets

0.35%

Shareholder Servicing Fees

rr_Component1OtherExpensesOverAssets

0.25%

Other Operating Expenses

rr_Component2OtherExpensesOverAssets

0.44%

Other Expenses

rr_OtherExpensesOverAssets

0.69%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.04%

Less Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.49%)

^[1]

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.55%

1 Year

rr_ExpenseExampleYear01

$ 56

3 Years

rr_ExpenseExampleYear03

282

5 Years

rr_ExpenseExampleYear05

526

10 Years

rr_ExpenseExampleYear10

$ 1,227

2008

rr_AnnualReturn2008

(1.02%)

2009

rr_AnnualReturn2009

9.63%

2010

rr_AnnualReturn2010

1.70%

2011

rr_AnnualReturn2011

8.72%

2012

rr_AnnualReturn2012

5.06%

2013

rr_AnnualReturn2013

(2.47%)

2014

rr_AnnualReturn2014

6.36%

2015

rr_AnnualReturn2015

2.61%

2016

rr_AnnualReturn2016

(0.32%)

2017

rr_AnnualReturn2017

3.74%

Year to Date Return, Label

rr_YearToDateReturnLabel

The Fund’s Class I Shares’ performance information

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Mar. 31, 2018

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

(1.20%)

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best Quarter

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

5.33%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst Quarter

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2010

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(4.11%)

1 Year

rr_AverageAnnualReturnYear01

3.74%

5 Years

rr_AverageAnnualReturnYear05

1.94%

10 Years

rr_AverageAnnualReturnYear10

3.33%

Class I Shares | HAWAII MUNICIPAL BOND FUND | Fund Return After Taxes on Distributions | CLASS I SHARES

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

3.73%

5 Years

rr_AverageAnnualReturnYear05

1.84%

10 Years

rr_AverageAnnualReturnYear10

3.27%

Class I Shares | HAWAII MUNICIPAL BOND FUND | Fund Return After Taxes on Distributions and Sale of Fund Shares | CLASS I SHARES

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

3.19%

5 Years

rr_AverageAnnualReturnYear05

2.07%

10 Years

rr_AverageAnnualReturnYear10

3.28%

Class I Shares | HAWAII MUNICIPAL BOND FUND | Bloomberg Barclays Capital Municipal Bond Index Return (reflects no deduction for fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

5.45%

^[2]

5 Years

rr_AverageAnnualReturnYear05

3.02%

^[2]

10 Years

rr_AverageAnnualReturnYear10

4.46%

^[2]

Class I Shares | HAWAII MUNICIPAL BOND FUND | ICE BofAML 1-22 Year U.S. Municipal Securities Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

1 Year

rr_AverageAnnualReturnYear01

4.53%

^[2]

5 Years

rr_AverageAnnualReturnYear05

2.71%

^[2]

10 Years

rr_AverageAnnualReturnYear10

4.26%

^[2]

[1] Bishop Street Capital Management (Adviser) has contractually agreed to reduce fees and reimburse expenses to the extent necessary to keep Total Annual Fund Operating Expenses for Class I Shares (excluding interest, taxes, brokerage commissions, acquired fund fees and expenses, and extraordinary expenses (collectively, excluded expenses)) from exceeding 0.55% of the Fund's average daily net assets through April 30, 2019 (Contractual Expense Limitation). In addition, the Board of Trustees (Board) of Bishop Street Funds (Trust) may permit the Adviser to receive from the Fund the difference between the Total Annual Fund Operating Expenses (not including excluded expenses) and the Contractual Expense Limitation to recoup all or a portion of its prior fee reductions or expense reimbursements made during the three-year period preceding the recoupment if at any point Total Annual Fund Operating Expenses (not including excluded expenses) are below the Contractual Expense Limitation: (i) at the time of the fee waiver and/or expense reimbursement; and (ii) at the time of the recoupment. This agreement may be terminated: (i) by the Board, for any reason at any time; or (ii) by the Adviser, upon ninety (90) days' prior written notice to the Trust, effective as of the close of business on April 30, 2019.

[2] As of May 1, 2018, the Fund's benchmark changed from the Bloomberg Barclays Capital Municipal Bond Index to the ICE BofAML 1-22 Year U.S. Municipal Securities Index to provide a more useful comparison of Fund performance.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	BISHOP STREET FUNDS
Prospectus Date	rr_ProspectusDate	May 01, 2018
Document Creation Date	dei_DocumentCreationDate	Apr. 30, 2018