Shareholder Report |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||
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Jun. 30, 2025
USD ($)
Holding
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Shareholder Report [Line Items] | |||||||||||||||||||||||||||||||||||||||||
Document Type | N-CSR | ||||||||||||||||||||||||||||||||||||||||
Amendment Flag | false | ||||||||||||||||||||||||||||||||||||||||
Registrant Name | SA FUNDS – INVESTMENT TRUST | ||||||||||||||||||||||||||||||||||||||||
Entity Central Index Key | 0001075065 | ||||||||||||||||||||||||||||||||||||||||
Entity Investment Company Type | N-1A | ||||||||||||||||||||||||||||||||||||||||
Document Period End Date | Jun. 30, 2025 | ||||||||||||||||||||||||||||||||||||||||
SA U.S. Fixed Income Fund | |||||||||||||||||||||||||||||||||||||||||
Shareholder Report [Line Items] | |||||||||||||||||||||||||||||||||||||||||
Fund Name | SA U.S. Fixed Income Fund | ||||||||||||||||||||||||||||||||||||||||
Class Name | SA U.S. Fixed Income Fund | ||||||||||||||||||||||||||||||||||||||||
Trading Symbol | SAUFX | ||||||||||||||||||||||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about SA U.S. Fixed Income Fund for the period of July 1, 2024 to June 30, 2025. | ||||||||||||||||||||||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||||||||||||||||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the Fund at https://advisor.focuspartners.com/sa-funds/documents. You can also request this information by contacting us at 1-844-366-0905. | ||||||||||||||||||||||||||||||||||||||||
Additional Information Phone Number | 1-844-366-0905 | ||||||||||||||||||||||||||||||||||||||||
Additional Information Website | https://advisor.focuspartners.com/sa-funds/documents | ||||||||||||||||||||||||||||||||||||||||
Expenses [Text Block] | What were the Fund costs for last year? (based on a hypothetical $10,000 investment)
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Expenses Paid, Amount | $ 41 | ||||||||||||||||||||||||||||||||||||||||
Expense Ratio, Percent | 0.40% | ||||||||||||||||||||||||||||||||||||||||
Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Investment performance of the Fund is judged against the performance of certain market indexes. For this Fund, performance is compared to a broad-based securities market index (the “Primary Benchmark”) known as the Morningstar® US Core Bond IndexSM, which is composed of U.S. dollar-denominated investment grade bonds and is designed to be representative of the U.S. bond market overall. The Fund’s performance is also compared to an additional index (the “Secondary Benchmark”) known as the Morningstar® US 1-3 Year Composite Government and Corporate Bond IndexSM, which is designed to measure the performance of U.S. dollardenominated government and corporate bonds with maturities between one and three years. The Secondary Benchmark is closer in scope to the universe of securities chosen within the Fund. The benchmark indexes are unmanaged and do not involve fees and expenses like the Fund.
For the fiscal year ended June 30, 2025, the Fund had a net return of 6.01%, compared to a return of 5.89% for the Fund’s Secondary Benchmark. The Fund outperformed the Secondary Benchmark by 0.12% for the fiscal year primarily due to the Fund’s overweight position in corporate bonds relative to the Secondary Benchmark, particularly those corporate bonds rated A or BBB. |
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Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of how the Fund will perform in the future. | ||||||||||||||||||||||||||||||||||||||||
Line Graph [Table Text Block] | Fund Performance The following line chart and table are intended to help you understand the risks of investing in the Fund. The chart shows the growth of $10,000 over the past ten years. The table shows the total return for the selected time periods for the SA Fund as well as for the Primary Benchmark and the Secondary Benchmark.
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Average Annual Return [Table Text Block] |
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No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. | ||||||||||||||||||||||||||||||||||||||||
Net Assets | $ 452,531,746 | ||||||||||||||||||||||||||||||||||||||||
Holdings Count | Holding | 105 | ||||||||||||||||||||||||||||||||||||||||
Advisory Fees Paid, Amount | $ 634,671 | ||||||||||||||||||||||||||||||||||||||||
Investment Company, Portfolio Turnover | 69.00% | ||||||||||||||||||||||||||||||||||||||||
Additional Fund Statistics [Text Block] |
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Holdings [Text Block] | What did the Fund invest in?
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Updated Prospectus Phone Number | 1-844-366-0905 | ||||||||||||||||||||||||||||||||||||||||
Updated Prospectus Web Address | https://advisor.focuspartners.com/sa-funds/documents | ||||||||||||||||||||||||||||||||||||||||
SA Global Fixed Income Fund | |||||||||||||||||||||||||||||||||||||||||
Shareholder Report [Line Items] | |||||||||||||||||||||||||||||||||||||||||
Fund Name | SA Global Fixed Income Fund | ||||||||||||||||||||||||||||||||||||||||
Class Name | SA Global Fixed Income Fund | ||||||||||||||||||||||||||||||||||||||||
Trading Symbol | SAXIX | ||||||||||||||||||||||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about SA Global Fixed Income Fund for the period of July 1, 2024 to June 30, 2025. | ||||||||||||||||||||||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||||||||||||||||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the Fund at https://advisor.focuspartners.com/sa-funds/documents. You can also request this information by contacting us at 1-844-366-0905. | ||||||||||||||||||||||||||||||||||||||||
Additional Information Phone Number | 1-844-366-0905 | ||||||||||||||||||||||||||||||||||||||||
Additional Information Website | https://advisor.focuspartners.com/sa-funds/documents | ||||||||||||||||||||||||||||||||||||||||
Expenses [Text Block] | What were the Fund costs for last year? (based on a hypothetical $10,000 investment)
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Expenses Paid, Amount | $ 52 | ||||||||||||||||||||||||||||||||||||||||
Expense Ratio, Percent | 0.51% | ||||||||||||||||||||||||||||||||||||||||
Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Investment performance of the Fund is judged against the performance of certain market indexes. For this Fund, performance is compared to a broad-based securities market index (the “Primary Benchmark”) known as the Morningstar® Global Core Bond Hedged IndexSM, which is composed of investment grade bonds and is designed to be representative of the global bond market overall. The Fund’s performance is also compared to an additional index (the “Secondary Benchmark”) known as the Morningstar® Global 1-5 Year Treasury Bond Hedged IndexSM, which is designed to measure the performance of global investment grade government bonds with maturities between one and five years. The Secondary Benchmark is closer in scope to the universe of securities chosen within the Fund. The benchmark indexes are unmanaged and do not involve fees and expenses like the Fund.
For the fiscal year ended June 30, 2025, the Fund had a net return of 5.67%, compared to a return of 6.11% for the Fund’s Secondary Benchmark. The Fund underperformed the Secondary Benchmark for the fiscal year by 0.44% primarily due to the Fund’s overweight exposure (relative to the benchmark) in higher grade bonds. |
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Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of how the Fund will perform in the future. | ||||||||||||||||||||||||||||||||||||||||
Line Graph [Table Text Block] | Fund Performance The following line chart and table are intended to help you understand the risks of investing in the Fund. The chart shows the growth of $10,000 over the past ten years. The table shows the total return for the selected time periods for the SA Fund as well as for the Primary Benchmark and the Secondary Benchmark.
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Average Annual Return [Table Text Block] |
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No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. | ||||||||||||||||||||||||||||||||||||||||
Net Assets | $ 543,289,524 | ||||||||||||||||||||||||||||||||||||||||
Holdings Count | Holding | 124 | ||||||||||||||||||||||||||||||||||||||||
Advisory Fees Paid, Amount | $ 1,445,230 | ||||||||||||||||||||||||||||||||||||||||
Investment Company, Portfolio Turnover | 77.00% | ||||||||||||||||||||||||||||||||||||||||
Additional Fund Statistics [Text Block] |
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Holdings [Text Block] | What did the Fund invest in?
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Largest Holdings [Text Block] |
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Updated Prospectus Phone Number | 1-844-366-0905 | ||||||||||||||||||||||||||||||||||||||||
Updated Prospectus Web Address | https://advisor.focuspartners.com/sa-funds/documents | ||||||||||||||||||||||||||||||||||||||||
SA U.S. Core Market Fund | |||||||||||||||||||||||||||||||||||||||||
Shareholder Report [Line Items] | |||||||||||||||||||||||||||||||||||||||||
Fund Name | SA U.S. Core Market Fund | ||||||||||||||||||||||||||||||||||||||||
Class Name | SA U.S. Core Market Fund | ||||||||||||||||||||||||||||||||||||||||
Trading Symbol | SAMKX | ||||||||||||||||||||||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about SA U.S. Core Market Fund for the period of July 1, 2024 to June 30, 2025. | ||||||||||||||||||||||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||||||||||||||||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the Fund at https://advisor.focuspartners.com/sa-funds/documents. You can also request this information by contacting us at 1-844-366-0905. | ||||||||||||||||||||||||||||||||||||||||
Additional Information Phone Number | 1-844-366-0905 | ||||||||||||||||||||||||||||||||||||||||
Additional Information Website | https://advisor.focuspartners.com/sa-funds/documents | ||||||||||||||||||||||||||||||||||||||||
Expenses [Text Block] | What were the Fund costs for last year? (based on a hypothetical $10,000 investment)
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Expenses Paid, Amount | $ 71 | ||||||||||||||||||||||||||||||||||||||||
Expense Ratio, Percent | 0.67% | ||||||||||||||||||||||||||||||||||||||||
Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Investment performance of the Fund is judged against the performance of a broad-based securities market index. For this Fund, performance is compared to the Morningstar® US Market Extended IndexSM (the "Primary Benchmark"), which is composed of large, mid, and small cap U.S. stocks. The benchmark index is unmanaged and does not involve fees and expenses like the Fund.
For the fiscal year ended June 30, 2025, the Fund had a net return of 13.13% compared to a return of 15.15% for the Fund’s Primary Benchmark. The Fund underperformed the Primary Benchmark during the fiscal year by 2.02%, after deducting the Fund’s net operating expenses for the year. Across the fiscal year the Fund had more exposure to stocks of companies with higher levels of operating profitability ("high profitability stocks") and less exposure to stocks of companies with lower levels of operating profitability ("low profitability stocks") compared to the Primary Benchmark. However, during the fiscal year, the returns of low profitability stocks were stronger than the returns of higher profitability stocks, hence the Fund's lower exposure to low profitability stocks caused the underperformance of the Fund to its Primary Benchmark. |
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Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of how the Fund will perform in the future. | ||||||||||||||||||||||||||||||||||||||||
Line Graph [Table Text Block] | Fund Performance The following line chart and table are intended to help you understand the risks of investing in the Fund. The chart shows the growth of $10,000 over the past ten years. The table shows the total return for the selected time periods for the SA Fund as well as for the Primary Benchmark.
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Average Annual Return [Table Text Block] |
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No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. | ||||||||||||||||||||||||||||||||||||||||
Net Assets | $ 669,637,380 | ||||||||||||||||||||||||||||||||||||||||
Holdings Count | Holding | 832 | ||||||||||||||||||||||||||||||||||||||||
Advisory Fees Paid, Amount | $ 2,691,835 | ||||||||||||||||||||||||||||||||||||||||
Investment Company, Portfolio Turnover | 1.00% | ||||||||||||||||||||||||||||||||||||||||
Additional Fund Statistics [Text Block] |
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Holdings [Text Block] | What did the Fund invest in?
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Updated Prospectus Phone Number | 1-844-366-0905 | ||||||||||||||||||||||||||||||||||||||||
Updated Prospectus Web Address | https://advisor.focuspartners.com/sa-funds/documents | ||||||||||||||||||||||||||||||||||||||||
SA U.S. Value Fund | |||||||||||||||||||||||||||||||||||||||||
Shareholder Report [Line Items] | |||||||||||||||||||||||||||||||||||||||||
Fund Name | SA U.S. Value Fund | ||||||||||||||||||||||||||||||||||||||||
Class Name | SA U.S. Value Fund | ||||||||||||||||||||||||||||||||||||||||
Trading Symbol | SABTX | ||||||||||||||||||||||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about SA U.S. Value Fund for the period of July 1, 2024 to June 30, 2025. | ||||||||||||||||||||||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||||||||||||||||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the Fund at https://advisor.focuspartners.com/sa-funds/documents. You can also request this information by contacting us at 1-844-366-0905. | ||||||||||||||||||||||||||||||||||||||||
Additional Information Phone Number | 1-844-366-0905 | ||||||||||||||||||||||||||||||||||||||||
Additional Information Website | https://advisor.focuspartners.com/sa-funds/documents | ||||||||||||||||||||||||||||||||||||||||
Expenses [Text Block] | What were the Fund costs for last year? (based on a hypothetical $10,000 investment)
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Expenses Paid, Amount | $ 77 | ||||||||||||||||||||||||||||||||||||||||
Expense Ratio, Percent | 0.74% | ||||||||||||||||||||||||||||||||||||||||
Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Investment performance of the Fund is judged against the performance of certain market indexes. For this Fund, performance is compared to a broad-based securities market index (the “Primary Benchmark”) known as the Morningstar® US Market Extended IndexSM, which is composed of large, mid, and small cap U.S. stocks. The Fund’s performance is also compared to an additional index (the “Secondary Benchmark”) known as the Morningstar® US Large-Mid Cap Broad Value IndexSM, which is designed to measure the performance of value stocks within the large and mid-capitalization segment of the U.S. stock market. The Secondary Benchmark is closer in scope to the universe of securities chosen within the Fund. The benchmark indexes are unmanaged and do not involve fees and expenses like the Fund. For the fiscal year ended June 30, 2025, the Fund had a net return of 8.58%, compared to a return of 11.57% for the Fund’s Secondary Benchmark. The Fund underperformed this Secondary Benchmark during the fiscal year by 2.99%, after deducting the Fund’s net operating expenses for the year. Across the fiscal year the Fund held larger positions in the stocks of companies whose ratio of price-to-book-value was below the median price-to-book value of stocks ("deeper value stocks") found in the Secondary Benchmark. These deeper value stocks - particularly those selected to be held in the Fund - significantly underperformed the stocks in the Secondary Benchmark, leading to the Fund's underperformance relative to the Secondary Benchmark. |
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Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of how the Fund will perform in the future. | ||||||||||||||||||||||||||||||||||||||||
Line Graph [Table Text Block] | Fund Performance The following line chart and table are intended to help you understand the risks of investing in the Fund. The chart shows the growth of $10,000 over the past ten years. The table shows the total return for the selected time periods for the SA Fund as well as for the Primary Benchmark and the Secondary Benchmark.
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Average Annual Return [Table Text Block] |
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No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. | ||||||||||||||||||||||||||||||||||||||||
Net Assets | $ 524,067,789 | ||||||||||||||||||||||||||||||||||||||||
Holdings Count | Holding | 272 | ||||||||||||||||||||||||||||||||||||||||
Advisory Fees Paid, Amount | $ 2,183,649 | ||||||||||||||||||||||||||||||||||||||||
Investment Company, Portfolio Turnover | 11.00% | ||||||||||||||||||||||||||||||||||||||||
Additional Fund Statistics [Text Block] |
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Largest Holdings [Text Block] | What did the Fund invest in?
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Updated Prospectus Phone Number | 1-844-366-0905 | ||||||||||||||||||||||||||||||||||||||||
Updated Prospectus Web Address | https://advisor.focuspartners.com/sa-funds/documents | ||||||||||||||||||||||||||||||||||||||||
SA U.S. Small Company Fund | |||||||||||||||||||||||||||||||||||||||||
Shareholder Report [Line Items] | |||||||||||||||||||||||||||||||||||||||||
Fund Name | SA U.S. Small Company Fund | ||||||||||||||||||||||||||||||||||||||||
Class Name | SA U.S. Small Company Fund | ||||||||||||||||||||||||||||||||||||||||
Trading Symbol | SAUMX | ||||||||||||||||||||||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about SA U.S. Small Company Fund for the period of July 1, 2024 to June 30, 2025. | ||||||||||||||||||||||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||||||||||||||||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the Fund at https://advisor.focuspartners.com/sa-funds/documents. You can also request this information by contacting us at 1-844-366-0905. | ||||||||||||||||||||||||||||||||||||||||
Additional Information Phone Number | 1-844-366-0905 | ||||||||||||||||||||||||||||||||||||||||
Additional Information Website | https://advisor.focuspartners.com/sa-funds/documents | ||||||||||||||||||||||||||||||||||||||||
Expenses [Text Block] | What were the Fund costs for last year? (based on a hypothetical $10,000 investment)
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Expenses Paid, Amount | $ 93 | ||||||||||||||||||||||||||||||||||||||||
Expense Ratio, Percent | 0.89% | ||||||||||||||||||||||||||||||||||||||||
Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Investment performance of the Fund is judged against the performance of certain market indexes. For this Fund, performance is compared to a broad-based securities market index (the “Primary Benchmark”) known as the Morningstar® US Market Extended IndexSM, which is composed of large, mid, and small cap U.S. stocks. The Fund’s performance is also compared to an additional index (the “Secondary Benchmark”) known as the Morningstar® US Small Cap Extended IndexSM, which is designed to measure the performance of small cap stocks within the U.S. stock market. The Secondary Benchmark is closer in scope to the universe of securities chosen within the Fund. The benchmark indexes are unmanaged and do not involve fees and expenses like the Fund.
For the fiscal year ended June 30, 2025, the Fund had a net return of 7.99%, compared to a return of 9.35% for the Fund’s Secondary Benchmark. The Fund underperformed this benchmark during the fiscal year by 1.36% after deducting the Fund’s net operating expenses for the year. The Fund’s underperformance relative to its Secondary Benchmark over the fiscal year was the result of the Fund’s tendency to avoid holding smaller cap stocks that exhibit both lower levels of profitability and also higher levels of price-to-book ratios (“growth-oriented low profit stocks”). However, these growth-oriented low profit stocks are found in the Secondary Benchmark, and during the fiscal year, these stocks performed well, leading to the returns of the Secondary Benchmark outperforming the returns of the Fund. |
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Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of how the Fund will perform in the future. | ||||||||||||||||||||||||||||||||||||||||
Line Graph [Table Text Block] | Fund Performance The following line chart and table are intended to help you understand the risks of investing in the Fund. The chart shows the growth of $10,000 over the past ten years. The table shows the total return for the selected time periods for the SA Fund as well as for the Primary Benchmark and the Secondary Benchmark.
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Average Annual Return [Table Text Block] |
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No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. | ||||||||||||||||||||||||||||||||||||||||
Net Assets | $ 295,676,287 | ||||||||||||||||||||||||||||||||||||||||
Holdings Count | Holding | 1,445 | ||||||||||||||||||||||||||||||||||||||||
Advisory Fees Paid, Amount | $ 1,240,169 | ||||||||||||||||||||||||||||||||||||||||
Investment Company, Portfolio Turnover | 3.00% | ||||||||||||||||||||||||||||||||||||||||
Additional Fund Statistics [Text Block] |
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Holdings [Text Block] |
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Updated Prospectus Phone Number | 1-844-366-0905 | ||||||||||||||||||||||||||||||||||||||||
Updated Prospectus Web Address | https://advisor.focuspartners.com/sa-funds/documents | ||||||||||||||||||||||||||||||||||||||||
SA International Value Fund | |||||||||||||||||||||||||||||||||||||||||
Shareholder Report [Line Items] | |||||||||||||||||||||||||||||||||||||||||
Fund Name | SA International Value Fund | ||||||||||||||||||||||||||||||||||||||||
Class Name | SA International Value Fund | ||||||||||||||||||||||||||||||||||||||||
Trading Symbol | SAHMX | ||||||||||||||||||||||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about SA International Value Fund for the period of July 1, 2024 to June 30, 2025. | ||||||||||||||||||||||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||||||||||||||||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the Fund at https://advisor.focuspartners.com/sa-funds/documents. You can also request this information by contacting us at 1-844-366-0905. | ||||||||||||||||||||||||||||||||||||||||
Additional Information Phone Number | 1-844-366-0905 | ||||||||||||||||||||||||||||||||||||||||
Additional Information Website | https://advisor.focuspartners.com/sa-funds/documents | ||||||||||||||||||||||||||||||||||||||||
Expenses [Text Block] | What were the Fund costs for last year? (based on a hypothetical $10,000 investment)
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Expenses Paid, Amount | $ 101 | ||||||||||||||||||||||||||||||||||||||||
Expense Ratio, Percent | 0.91% | ||||||||||||||||||||||||||||||||||||||||
Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Investment performance of the Fund is judged against the performance of certain market indexes. For this Fund, performance is compared to a broad-based securities market index (the “Primary Benchmark”) known as the Morningstar® Developed Markets ex-US All Cap Target Market Exposure IndexSM, which is composed of large, mid, and small cap stocks trading in international developed markets. The Fund’s performance is also compared to an additional index (the “Secondary Benchmark”) known as the Morningstar® Developed Markets ex-US Value Target Market Exposure IndexSM, which is designed to measure the performance of value stocks within the large and mid-capitalization segments of the international developed markets. The Secondary Benchmark is closer in scope to the universe of securities chosen within the Fund. The benchmark indexes are unmanaged and do not involve fees and expenses like the Fund.
For the fiscal year ended June 30, 2025, the Fund had a net return of 22.47%, compared to a return of 22.95% for the Fund’s Secondary Benchmark. The Fund underperformed the Secondary Benchmark during the fiscal year by 0.48% after deducting the Fund’s net operating expenses for the year. The Fund's underperformance relative to the Secondary Benchmark during the fiscal year was primarily the result of the fact that the Fund charges net operating expenses while the Secondary Benchmark does not. |
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Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of how the Fund will perform in the future. | ||||||||||||||||||||||||||||||||||||||||
Line Graph [Table Text Block] | Fund Performance The following line chart and table are intended to help you understand the risks of investing in the Fund. The chart shows the growth of $10,000 over the past ten years. The table shows the total return for the selected time periods for the SA Fund as well as for the Primary Benchmark and the Secondary Benchmark.
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Average Annual Return [Table Text Block] |
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No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. | ||||||||||||||||||||||||||||||||||||||||
Net Assets | $ 577,005,303 | ||||||||||||||||||||||||||||||||||||||||
Holdings Count | Holding | 433 | ||||||||||||||||||||||||||||||||||||||||
Advisory Fees Paid, Amount | $ 2,480,531 | ||||||||||||||||||||||||||||||||||||||||
Investment Company, Portfolio Turnover | 9.00% | ||||||||||||||||||||||||||||||||||||||||
Additional Fund Statistics [Text Block] |
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Holdings [Text Block] |
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Largest Holdings [Text Block] |
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Updated Prospectus Phone Number | 1-844-366-0905 | ||||||||||||||||||||||||||||||||||||||||
Updated Prospectus Web Address | https://advisor.focuspartners.com/sa-funds/documents | ||||||||||||||||||||||||||||||||||||||||
SA International Small Company Fund | |||||||||||||||||||||||||||||||||||||||||
Shareholder Report [Line Items] | |||||||||||||||||||||||||||||||||||||||||
Fund Name | SA International Small Company Fund | ||||||||||||||||||||||||||||||||||||||||
Class Name | SA International Small Company Fund | ||||||||||||||||||||||||||||||||||||||||
Trading Symbol | SAISX | ||||||||||||||||||||||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about SA International Small Company Fund for the period of July 1, 2024 to June 30, 2025. | ||||||||||||||||||||||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||||||||||||||||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the Fund at https://advisor.focuspartners.com/safunds/documents. You can also request this information by contacting us at 1-844-366-0905. | ||||||||||||||||||||||||||||||||||||||||
Additional Information Phone Number | 1-844-366-0905 | ||||||||||||||||||||||||||||||||||||||||
Additional Information Website | https://advisor.focuspartners.com/safunds/documents | ||||||||||||||||||||||||||||||||||||||||
Expenses [Text Block] | What were the Fund costs for last year? (based on a hypothetical $10,000 investment)
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Expenses Paid, Amount | $ 59 | ||||||||||||||||||||||||||||||||||||||||
Expense Ratio, Percent | 0.53% | ||||||||||||||||||||||||||||||||||||||||
Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Investment performance of the Fund is judged against the performance of certain market indexes. For this Fund, performance is compared to a broad-based securities market index (the “Primary Benchmark”) known as the Morningstar® Developed Markets ex-US All Cap Target Market Exposure IndexSM, which is composed of large, mid, and small cap stocks trading in international developed markets. The Fund’s performance is also compared to an additional index (the “Secondary Benchmark”) known as the Morningstar® Developed Markets ex-US Small Cap Target Market Exposure IndexSM, which is designed to measure the performance of small cap stocks within the international developed markets. The Secondary Benchmark is more representative of the investment universe of the series of The DFA Investment Trust Company through which the Fund invests. Please see the following page for additional information about these series. The benchmark indexes are unmanaged and do not involve fees and expenses like the Fund.
For the fiscal year ended June 30, 2025, the Fund had a net return of 23.19%, compared to a return of 23.04% for the Fund’s Secondary Benchmark. The Fund outperformed the Secondary Benchmark during the fiscal year by 0.15% after deducting the Fund’s net operating expenses for the year. The Fund’s performance during the fiscal year was relatively similar to the performance of the Secondary Benchmark, as a result of positive returns in the Fund roughly offsetting the fees paid by the Fund. The Fund’s performance relative to the Secondary Benchmark was primarily the result of the Fund’s avoidance of REITs and growth-oriented low profitability stocks. |
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Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of how the Fund will perform in the future. | ||||||||||||||||||||||||||||||||||||||||
Line Graph [Table Text Block] | Fund Performance The following line chart and table are intended to help you understand the risks of investing in the Fund. The chart shows the growth of $10,000 over the past ten years. The table shows the total return for the selected time periods for the SA Fund as well as for the Primary Benchmark and the Secondary Benchmark.
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Average Annual Return [Table Text Block] |
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No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. | ||||||||||||||||||||||||||||||||||||||||
Net Assets | $ 271,544,757 | ||||||||||||||||||||||||||||||||||||||||
Holdings Count | Holding | 1 | ||||||||||||||||||||||||||||||||||||||||
Advisory Fees Paid, Amount | $ 631,768 | ||||||||||||||||||||||||||||||||||||||||
Investment Company, Portfolio Turnover | 4.00% | ||||||||||||||||||||||||||||||||||||||||
Additional Fund Statistics [Text Block] |
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Largest Holdings [Text Block] | What did the Fund invest in?
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Updated Prospectus Phone Number | 1-844-366-0905 | ||||||||||||||||||||||||||||||||||||||||
Updated Prospectus Web Address | https://advisor.focuspartners.com/sa-funds/documents | ||||||||||||||||||||||||||||||||||||||||
SA Emerging Markets Value Fund | |||||||||||||||||||||||||||||||||||||||||
Shareholder Report [Line Items] | |||||||||||||||||||||||||||||||||||||||||
Fund Name | SA Emerging Markets Value Fund | ||||||||||||||||||||||||||||||||||||||||
Class Name | SA Emerging Markets Value Fund | ||||||||||||||||||||||||||||||||||||||||
Trading Symbol | SAEMX | ||||||||||||||||||||||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about SA Emerging Markets Value Fund for the period of July 1, 2024 to June 30, 2025. | ||||||||||||||||||||||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||||||||||||||||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the Fund at https://advisor.focuspartners.com/safunds/documents. You can also request this information by contacting us at 1-844-366-0905. | ||||||||||||||||||||||||||||||||||||||||
Additional Information Phone Number | 1-844-366-0905 | ||||||||||||||||||||||||||||||||||||||||
Additional Information Website | https://advisor.focuspartners.com/safunds/documents | ||||||||||||||||||||||||||||||||||||||||
Expenses [Text Block] | What were the Fund costs for last year? (based on a hypothetical $10,000 investment)
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Expenses Paid, Amount | $ 109 | ||||||||||||||||||||||||||||||||||||||||
Expense Ratio, Percent | 1.04% | ||||||||||||||||||||||||||||||||||||||||
Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Investment performance of the Fund is judged against the performance of certain market indexes. For this Fund, performance is compared to a broad-based securities market index (the “Primary Benchmark”) known as the Morningstar® Emerging Markets All Cap Target Market Exposure IndexSM, which is composed of large, mid, and small cap stocks trading in emerging markets. The Fund’s performance is also compared to an additional index (the “Secondary Benchmark”) known as the Morningstar® Emerging Markets Value Target Market Exposure IndexSM, which is designed to measure the performance of value stocks within the large and mid-capitalization segment of the emerging markets. The Secondary Benchmark is closer in scope to the universe of securities chosen within the Fund. The benchmark indexes are unmanaged and do not involve fees and expenses like the Fund.
For the fiscal year ended June 30, 2025, the Fund had a net return of 10.33%, compared to a return of 17.33% for the Fund’s Secondary Benchmark. The Fund underperformed the Secondary Benchmark by 7.00% after deducting the Fund’s net operating expenses for the year. Across the fiscal year the Fund maintained a larger position than that of the Secondary Benchmark in the stocks of companies whose ratio of price-to-book-value were among the lowest in the Secondary Benchmark (known as “deeper value stocks"), while also minimizing exposure to stocks of companies whose price-to-book-value ratio was above the median ratio of companies in the Secondary Benchmark. During the fiscal year, returns of companies with price-to-book-value ratios above the median of the Secondary Benchmark were particularly strong, contributing to the Fund’s underperformance relative to the Secondary Benchmark. |
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Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of how the Fund will perform in the future. | ||||||||||||||||||||||||||||||||||||||||
Line Graph [Table Text Block] | Fund Performance
The following line chart and table are intended to help you understand the risks of investing in the Fund. The chart shows the growth of $10,000 over the past ten years. The table shows the total return for the selected time periods for the SA Fund as well as for the Primary Benchmark and the Secondary Benchmark.
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Average Annual Return [Table Text Block] |
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No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. | ||||||||||||||||||||||||||||||||||||||||
Net Assets | $ 203,591,960 | ||||||||||||||||||||||||||||||||||||||||
Holdings Count | Holding | 1,806 | ||||||||||||||||||||||||||||||||||||||||
Advisory Fees Paid, Amount | $ 308,010 | ||||||||||||||||||||||||||||||||||||||||
Investment Company, Portfolio Turnover | 17.00% | ||||||||||||||||||||||||||||||||||||||||
Additional Fund Statistics [Text Block] |
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Holdings [Text Block] | What did the Fund invest in?
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Largest Holdings [Text Block] |
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Updated Prospectus Phone Number | 1-844-366-0905 | ||||||||||||||||||||||||||||||||||||||||
Updated Prospectus Web Address | https://advisor.focuspartners.com/sa-funds/documents | ||||||||||||||||||||||||||||||||||||||||
SA Real Estate Securities Fund | |||||||||||||||||||||||||||||||||||||||||
Shareholder Report [Line Items] | |||||||||||||||||||||||||||||||||||||||||
Fund Name | SA Real Estate Securities Fund | ||||||||||||||||||||||||||||||||||||||||
Class Name | SA Real Estate Securities Fund | ||||||||||||||||||||||||||||||||||||||||
Trading Symbol | SAREX | ||||||||||||||||||||||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about SA Real Estate Securities Fund for the period of July 1, 2024 to June 30, 2025. | ||||||||||||||||||||||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||||||||||||||||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the Fund at https://advisor.focuspartners.com/sa-funds/documents. You can also request this information by contacting us at 1-844-366-0905. | ||||||||||||||||||||||||||||||||||||||||
Additional Information Phone Number | 1-844-366-0905 | ||||||||||||||||||||||||||||||||||||||||
Additional Information Website | https://advisor.focuspartners.com/sa-funds/documents | ||||||||||||||||||||||||||||||||||||||||
Expenses [Text Block] | What were the Fund costs for last year? (based on a hypothetical $10,000 investment)
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Expenses Paid, Amount | $ 80 | ||||||||||||||||||||||||||||||||||||||||
Expense Ratio, Percent | 0.77% | ||||||||||||||||||||||||||||||||||||||||
Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Investment performance of the Fund is judged against the performance of certain market indexes. For this Fund, performance is compared to a broad-based securities market index (the “Primary Benchmark”) known as the Morningstar® US Market Extended IndexSM, which is composed of large, mid, and small cap U.S. stocks. The Fund’s performance is also compared to an additional index (the “Secondary Benchmark”) known as the Morningstar® US REIT IndexSM, which is designed to measure the performance of real estate stocks within the U.S. stock market. The Secondary Benchmark is closer in scope to the universe of securities chosen within the Fund. The benchmark indexes are unmanaged and do not involve fees and expenses like the Fund.
For the fiscal year ended June 30, 2025, the Fund had a net return of 8.29%, compared to a return of 9.66% for the Fund’s Secondary Benchmark. The Fund underperformed the Secondary Benchmark during the fiscal year by 1.37% after deducting the Fund’s net operating expenses for the year. Part of the Fund's underperformance to the Secondary Benchmark during the fiscal year was due to the fact that the Fund pays operating expenses while the Secondary Benchmark does not. The remainder of the underperformance was due to the fact that the Fund held a small percentage of stocks that are not included in the Secondary Benchmark, and these stocks had significantly underperformed the Secondary Benchmark. |
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Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of how the Fund will perform in the future. | ||||||||||||||||||||||||||||||||||||||||
Line Graph [Table Text Block] | Fund Performance The following line chart and table are intended to help you understand the risks of investing in the Fund. The chart shows the growth of $10,000 over the past ten years. The table shows the total return for the selected time periods for the SA Fund as well as for the Primary Benchmark and the Secondary Benchmark.
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Average Annual Return [Table Text Block] |
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No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. | ||||||||||||||||||||||||||||||||||||||||
Net Assets | $ 118,724,719 | ||||||||||||||||||||||||||||||||||||||||
Holdings Count | Holding | 133 | ||||||||||||||||||||||||||||||||||||||||
Advisory Fees Paid, Amount | $ 335,224 | ||||||||||||||||||||||||||||||||||||||||
Investment Company, Portfolio Turnover | 5.00% | ||||||||||||||||||||||||||||||||||||||||
Additional Fund Statistics [Text Block] |
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Largest Holdings [Text Block] | What did the Fund invest in?
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Updated Prospectus Phone Number | 1-844-366-0905 | ||||||||||||||||||||||||||||||||||||||||
Updated Prospectus Web Address | https://advisor.focuspartners.com/sa-funds/documents | ||||||||||||||||||||||||||||||||||||||||
SA Worldwide Moderate Growth Fund | |||||||||||||||||||||||||||||||||||||||||
Shareholder Report [Line Items] | |||||||||||||||||||||||||||||||||||||||||
Fund Name | SA Worldwide Moderate Growth Fund | ||||||||||||||||||||||||||||||||||||||||
Class Name | SA Worldwide Moderate Growth Fund | ||||||||||||||||||||||||||||||||||||||||
Trading Symbol | SAWMX | ||||||||||||||||||||||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about SA Worldwide Moderate Growth Fund for the period of July 1, 2024 to June 30, 2025. | ||||||||||||||||||||||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||||||||||||||||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the Fund at https://advisor.focuspartners.com/safunds/documents. You can also request this information by contacting us at 1-844-366-0905. | ||||||||||||||||||||||||||||||||||||||||
Additional Information Phone Number | 1-844-366-0905 | ||||||||||||||||||||||||||||||||||||||||
Additional Information Website | https://advisor.focuspartners.com/safunds/documents | ||||||||||||||||||||||||||||||||||||||||
Expenses [Text Block] | What were the Fund costs for last year? (based on a hypothetical $10,000 investment)
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Expenses Paid, Amount | $ 0 | [1] | |||||||||||||||||||||||||||||||||||||||
Expense Ratio, Percent | 0.00% | [1] | |||||||||||||||||||||||||||||||||||||||
Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Investment performance of the Fund is judged against the performance of certain market indexes. For this Fund, performance is compared to a broad-based securities market index (the “Primary Benchmark”) known as the Morningstar® Global Markets IndexSM, which is composed of large, mid, and small cap stocks and is designed to be representative of the global stock market overall. The Fund’s performance is also compared to an additional index (the “Secondary Benchmark”) known as the Morningstar® US Moderate Target Allocation IndexSM, which is designed to measure the performance of a portfolio holding 60% global stocks and 40% global bonds. The Secondary Benchmark is closer in scope to the universe of securities chosen within the Fund. The benchmark indexes are unmanaged and do not involve fees and expenses like the Fund. For the fiscal year ended June 30, 2025, the Fund had a net return of 11.69%, compared to a return of 12.16% for the Fund’s Secondary Benchmark. Since the Fund invests exclusively in shares of the SA Fund family (the “Underlying Funds”), the performance of the Fund relative to the Secondary Benchmark is driven primarily by the performance of each of the Underlying Funds against the relevant components of that Secondary Benchmark. For the fiscal year, two of the eight Underlying Funds contributed positively to relative performance, notably the SA International Value Fund. Six of the eight Underlying Funds contributed negatively to relative performance for the fiscal year, most notably the SA US Core Market Fund and the SA Global Fixed Income Fund. |
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Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of how the Fund will perform in the future. | ||||||||||||||||||||||||||||||||||||||||
Line Graph [Table Text Block] | Fund Performance The following line chart and table are intended to help you understand the risks of investing in the Fund. The chart shows the growth of $10,000 over the period since the Fund's inception. The table shows the total return for the selected time periods for the SA Fund as well as for the Primary Benchmark and the Secondary Benchmark.
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Average Annual Return [Table Text Block] |
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Performance Inception Date | Jul. 01, 2015 | ||||||||||||||||||||||||||||||||||||||||
No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. | ||||||||||||||||||||||||||||||||||||||||
Net Assets | $ 21,148,705 | ||||||||||||||||||||||||||||||||||||||||
Holdings Count | Holding | 8 | ||||||||||||||||||||||||||||||||||||||||
Advisory Fees Paid, Amount | $ 0 | ||||||||||||||||||||||||||||||||||||||||
Investment Company, Portfolio Turnover | 9.00% | ||||||||||||||||||||||||||||||||||||||||
Additional Fund Statistics [Text Block] |
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Largest Holdings [Text Block] | What did the Fund invest in?
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Updated Prospectus Phone Number | 1-844-366-0905 | ||||||||||||||||||||||||||||||||||||||||
Updated Prospectus Web Address | https://advisor.focuspartners.com/sa-funds/documents | ||||||||||||||||||||||||||||||||||||||||
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