Investment Strategy	Apr. 30, 2026
Bahl & Gaynor Dividend ETF
Prospectus [Line Items]
Strategy [Heading]	Principal Investment Strategies
Strategy Narrative [Text Block]	The Fund is an actively managed exchange-traded fund (“ETF”) that invests primarily in dividend-paying U.S.-listed equity securities. Under normal circumstances, the Fund invests at least 80% of its net assets (plus borrowings for investments purposes) in dividend-paying securities (i.e., equity securities that have paid a dividend in the prior 12 calendar months). The equity securities held by the Fund may include common stocks of U.S. companies, American Depositary Receipts (“ADRs”) (i.e., receipts evidencing ownership of foreign equity securities), and real estate investment trusts (“REITs”). In selecting securities, Bahl & Gaynor, Inc., the Fund’s investment adviser (“Bahl & Gaynor” or the “Adviser”), employs a bottom‑up approach that considers, among other factors, a company’s historical earnings and dividend growth, as well as its balance sheet and cash flow generation, competitive position, and prospects for future cash flow and dividend growth. Weightings of individual securities are based on the Adviser’s assessment of company fundamentals, valuations, and overall economic conditions. The Adviser targets companies that, in its judgement, have high-quality business models, strong competitive advantages, reasonable valuations, and sound capital allocation policies or approaches. The Adviser believes that the securities identified using such strategies have the potential to provide improved downside protection relative to the broader equity market. The Adviser generally sells a security when, in its opinion, one or more of the following occurs, among other reasons: 1) the security’s dividend is reduced to what the Adviser believes is an unacceptable amount per share, 2) the Adviser believes the company’s fundamentals and/or management is deteriorating, 3) the Adviser believes the company’s stock has become a greater weight of the Fund’s portfolio than desired due to market appreciation or other factors, or 4) the Adviser identifies a more attractive investment opportunity for the Fund. While investing in a particular market sector is not a strategy of the Fund, its portfolio may be significantly invested in one or more sectors as a result of the security selection decisions made pursuant to its strategy. As of March 31, 2026, a significant portion of the Fund’s assets consisted of securities of companies in the industrials, financials, and information technology sectors, although this may change from time to time.
Strategy Portfolio Concentration [Text]	Under normal circumstances, the Fund invests at least 80% of its net assets (plus borrowings for investments purposes) in dividend-paying securities (i.e., equity securities that have paid a dividend in the prior 12 calendar months).
Bahl & Gaynor Income Growth ETF
Prospectus [Line Items]
Strategy [Heading]	Principal Investment Strategies
Strategy Narrative [Text Block]	The Fund is an actively managed exchange-traded fund (“ETF”) that invests primarily in dividend-paying U.S.-listed equity securities of large capitalization companies, predominately those with a market capitalization greater than $7 billion. The equity securities held by the Fund may include common stocks of U.S. companies, American Depositary Receipts (“ADRs”) (i.e., receipts evidencing ownership of foreign equity securities), and real estate investment trusts (“REITs”). In selecting securities, Bahl & Gaynor, Inc., the Fund’s investment adviser (“Bahl & Gaynor” or the “Adviser”), employs a bottom‑up approach that considers, among other factors, a company’s historical earnings and dividend growth, as well as its balance sheet and cash flow generation, competitive position, and prospects for future cash flow and dividend growth. Weightings of individual securities are based on the Adviser’s assessment of company fundamentals, valuations, and overall economic conditions. The Adviser targets companies that, in its judgement, have high-quality business models, strong competitive advantages, reasonable valuations, and sound capital allocation policies or approaches. The Adviser believes that the securities identified using such strategies have the potential to provide improved downside protection relative to the broader equity market. The Adviser generally sells a security when, in its opinion, one or more of the following occurs, among other reasons: 1) the security’s dividend is reduced to what the Adviser believes is an unacceptable amount per share, 2) the Adviser believes the company’s fundamentals and/or management is deteriorating, 3) the Adviser believes the company’s stock has become a greater weight of the Fund’s portfolio than desired due to market appreciation or other factors, or 4) the Adviser identifies a more attractive investment opportunity for the Fund. While investing in a particular market sector is not a strategy of the Fund, its portfolio may be significantly invested in one or more sectors as a result of the security selection decisions made pursuant to its strategy. As of March 31, 2026, a significant portion of the Fund’s assets consisted of securities of companies in the information technology and health care sectors, although this may change from time to time.
Strategy Portfolio Concentration [Text]	The Fund is an actively managed exchange-traded fund (“ETF”) that invests primarily in dividend-paying U.S.-listed equity securities of large capitalization companies, predominately those with a market capitalization greater than $7 billion.
Bahl & Gaynor Small Cap Dividend ETF
Prospectus [Line Items]
Strategy [Heading]	Principal Investment Strategies
Strategy Narrative [Text Block]	The Fund is an actively managed exchange-traded fund (“ETF”) that invests primarily in dividend-paying U.S.-listed equity securities of small capitalization companies. Under normal circumstances, the Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in (i) small-capitalization companies and (ii) dividend-paying securities (i.e., equity securities that have paid a dividend in the prior 12 calendar months). The Fund defines a small-capitalization company as an issuer whose market capitalization at the time of purchase is between the range of the market capitalizations of the companies included in the Russell 2000® Index within the prior 12-month period. Because of the Fund’s long-term approach to investing, it could have a significant portion of its assets invested in securities of issuers that have appreciated beyond the market capitalization thresholds noted. The equity securities held by the Fund may include common stocks of U.S. companies, American Depositary Receipts (“ADRs”) (i.e., receipts evidencing ownership of foreign equity securities), and real estate investment trusts (“REITs”). In selecting securities, Bahl & Gaynor, Inc., the Fund’s investment adviser (“Bahl & Gaynor” or the “Adviser”), employs a bottom‑up approach that considers, among other factors, a company’s historical earnings and dividend growth, as well as its balance sheet and cash flow generation, competitive position, and prospects for future cash flow and dividend growth. Weightings of individual securities are based on the Adviser’s assessment of company fundamentals, valuations, and overall economic conditions. The Adviser targets companies that, in its judgement, have high-quality business models, strong competitive advantages, reasonable valuations, and sound capital allocation policies or approaches. The Adviser believes that the securities identified using such strategies have the potential to provide improved downside protection relative to the broader small-cap equity market. The Adviser generally sells a security when, in its opinion, one or more of the following occurs, among other reasons: 1) the security’s dividend is reduced to what the Adviser believes is an unacceptable amount per share, 2) the Adviser believes the company’s fundamentals and/or management is deteriorating, 3) the Adviser believes the company’s stock has become a greater weight of the Fund’s portfolio than desired due to market appreciation or other factors, or 4) the Adviser identifies a more attractive investment opportunity for the Fund. While investing in a particular market sector is not a strategy of the Fund, its portfolio may be significantly invested in one or more sectors as a result of the security selection decisions made pursuant to its strategy. As of March 31, 2026, a significant portion of the Fund’s assets consisted of securities of companies in the industrials and health care sectors, although this may change from time to time. The Fund is considered to be non-diversified, which means that it may invest more of its assets in the securities of a single issuer or a smaller number of issuers than if it were a diversified fund.
Strategy Portfolio Concentration [Text]	Under normal circumstances, the Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in (i) small-capitalization companies and (ii) dividend-paying securities
AAM Bahl & Gaynor Small/Mid Cap Income Growth ETF
Prospectus [Line Items]
Strategy [Heading]	Principal Investment Strategies
Strategy Narrative [Text Block]	The Fund is an actively managed exchange-traded fund (“ETF”) that invests primarily in U.S.-listed equity securities of small- and mid-capitalization companies. Under normal circumstances, the Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in small- and mid-capitalization companies. The Fund defines a small- or mid-capitalization company as an issuer whose market capitalization at the time of purchase is between $200 million and the market capitalization of the largest company in the Russell 2500® Index within the prior 12-month period. Because of the Fund’s long-term approach to investing, it could have a significant portion of its assets invested in securities of issuers that have appreciated beyond the market capitalization thresholds noted. The equity securities held by the Fund may include common stocks of U.S. companies, American Depositary Receipts (“ADRs”) (i.e., receipts evidencing ownership of foreign equity securities), and real estate investment trusts (“REITs”). In selecting securities, Bahl & Gaynor, Inc., the Fund’s investment adviser (“Bahl & Gaynor” or the “Adviser”), employs a bottom‑up approach that considers, among other factors, a company’s historical earnings and dividend growth, as well as its balance sheet and cash flow generation, competitive position, and prospects for future cash flow and dividend growth. Weightings of individual securities are based on the Adviser’s assessment of company fundamentals, valuations, and overall economic conditions. The Adviser targets companies that, in its judgement, have high-quality business models, strong competitive advantages, reasonable valuations, and sound capital allocation policies or approaches. The Adviser believes that the securities identified using such strategies have the potential to provide improved downside protection relative to the broader small- and mid- cap equity market. The Adviser generally sells a security when, in its opinion one or more of the following occurs, among other reasons: 1) the security’s dividend is reduced to what the Adviser believes is an unacceptable amount per share, 2) the Adviser believes the company’s fundamentals and/or management is deteriorating, 3) the Adviser believes the company’s stock has become a greater weight of the Fund’s portfolio than desired due to market appreciation or other factors, or 4) the Adviser identifies a more attractive investment opportunity for the Fund. While investing in a particular market sector is not a strategy of the Fund, its portfolio may be significantly invested in one or more sectors as a result of the security selection decisions made pursuant to its strategy. As of March 31, 2026, a significant portion of the Fund’s assets consisted of securities of companies in the industrials and financials sectors, although this may change from time to time.
Strategy Portfolio Concentration [Text]	Under normal circumstances, the Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in small- and mid-capitalization companies.

Investment Strategy

Apr. 30, 2026

Principal Investment Strategies

The Fund is an actively managed exchange-traded fund (“ETF”) that invests primarily in dividend-paying U.S.-listed equity securities. Under normal circumstances, the Fund invests at least 80% of its net assets (plus borrowings for investments purposes) in dividend-paying securities (i.e., equity securities that have paid a dividend in the prior 12 calendar months). The equity securities held by the Fund may include common stocks of U.S. companies, American Depositary Receipts (“ADRs”) (i.e., receipts evidencing ownership of foreign equity securities), and real estate investment trusts (“REITs”).

In selecting securities, Bahl & Gaynor, Inc., the Fund’s investment adviser (“Bahl & Gaynor” or the “Adviser”), employs a bottom‑up approach that considers, among other factors, a company’s historical earnings and dividend growth, as well as its balance sheet and cash flow generation, competitive position, and prospects for future cash flow and dividend growth. Weightings of individual securities are based on the Adviser’s assessment of company fundamentals, valuations, and overall economic conditions. The Adviser targets companies that, in its judgement, have high-quality business models, strong competitive advantages, reasonable valuations, and sound capital allocation policies or approaches. The Adviser believes that the securities identified using such strategies have the potential to provide improved downside protection relative to the broader equity market.

The Adviser generally sells a security when, in its opinion, one or more of the following occurs, among other reasons: 1) the security’s dividend is reduced to what the Adviser believes is an unacceptable amount per share, 2) the Adviser believes the company’s fundamentals and/or management is deteriorating, 3) the Adviser believes the company’s stock has become a greater weight of the Fund’s portfolio than desired due to market appreciation or other factors, or 4) the Adviser identifies a more attractive investment opportunity for the Fund.

While investing in a particular market sector is not a strategy of the Fund, its portfolio may be significantly invested in one or more sectors as a result of the security selection decisions made pursuant to its strategy. As of March 31, 2026, a significant portion of the Fund’s assets consisted of securities of companies in the industrials, financials, and information technology sectors, although this may change from time to time.

Strategy Portfolio Concentration [Text]

Under normal circumstances, the Fund invests at least 80% of its net assets (plus borrowings for investments purposes) in dividend-paying securities (i.e., equity securities that have paid a dividend in the prior 12 calendar months).

Bahl & Gaynor Income Growth ETF

Prospectus [Line Items]

Strategy [Heading]

Principal Investment Strategies

Strategy Narrative [Text Block]

The Fund is an actively managed exchange-traded fund (“ETF”) that invests primarily in dividend-paying U.S.-listed equity securities of large capitalization companies, predominately those with a market capitalization greater than $7 billion. The equity securities held by the Fund may include common stocks of U.S. companies, American Depositary Receipts (“ADRs”) (i.e., receipts evidencing ownership of foreign equity securities), and real estate investment trusts (“REITs”).

While investing in a particular market sector is not a strategy of the Fund, its portfolio may be significantly invested in one or more sectors as a result of the security selection decisions made pursuant to its strategy. As of March 31, 2026, a significant portion of the Fund’s assets consisted of securities of companies in the information technology and health care sectors, although this may change from time to time.

Strategy Portfolio Concentration [Text]

Bahl & Gaynor Small Cap Dividend ETF

Prospectus [Line Items]

Strategy [Heading]

Principal Investment Strategies

Strategy Narrative [Text Block]

The Fund is an actively managed exchange-traded fund (“ETF”) that invests primarily in dividend-paying U.S.-listed equity securities of small capitalization companies. Under normal circumstances, the Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in (i) small-capitalization companies and (ii) dividend-paying securities (i.e., equity securities that have paid a dividend in the prior 12 calendar months). The Fund defines a small-capitalization company as an issuer whose market capitalization at the time of purchase is between the range of the market capitalizations of the companies included in the Russell 2000® Index within the prior 12-month period. Because of the Fund’s long-term approach to investing, it could have a significant portion of its assets invested in securities of issuers that have appreciated beyond the market capitalization thresholds noted. The equity securities held by the Fund may include common stocks of U.S. companies, American Depositary Receipts (“ADRs”) (i.e., receipts evidencing ownership of foreign equity securities), and real estate investment trusts (“REITs”).

While investing in a particular market sector is not a strategy of the Fund, its portfolio may be significantly invested in one or more sectors as a result of the security selection decisions made pursuant to its strategy. As of March 31, 2026, a significant portion of the Fund’s assets consisted of securities of companies in the industrials and health care sectors, although this may change from time to time.

The Fund is considered to be non-diversified, which means that it may invest more of its assets in the securities of a single issuer or a smaller number of issuers than if it were a diversified fund.

Strategy Portfolio Concentration [Text]

Under normal circumstances, the Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in (i) small-capitalization companies and (ii) dividend-paying securities

AAM Bahl & Gaynor Small/Mid Cap Income Growth ETF

Prospectus [Line Items]

Strategy [Heading]

Principal Investment Strategies

Strategy Narrative [Text Block]

The Fund is an actively managed exchange-traded fund (“ETF”) that invests primarily in U.S.-listed equity securities of small- and mid-capitalization companies. Under normal circumstances, the Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in small- and mid-capitalization companies. The Fund defines a small- or mid-capitalization company as an issuer whose market capitalization at the time of purchase is between $200 million and the market capitalization of the largest company in the Russell 2500® Index within the prior 12-month period. Because of the Fund’s long-term approach to investing, it could have a significant portion of its assets invested in securities of issuers that have appreciated beyond the market capitalization thresholds noted. The equity securities held by the Fund may include common stocks of U.S. companies, American Depositary Receipts (“ADRs”) (i.e., receipts evidencing ownership of foreign equity securities), and real estate investment trusts (“REITs”).

The Adviser generally sells a security when, in its opinion one or more of the following occurs, among other reasons: 1) the security’s dividend is reduced to what the Adviser believes is an unacceptable amount per share, 2) the Adviser believes the company’s fundamentals and/or management is deteriorating, 3) the Adviser believes the company’s stock has become a greater weight of the Fund’s portfolio than desired due to market appreciation or other factors, or 4) the Adviser identifies a more attractive investment opportunity for the Fund.

While investing in a particular market sector is not a strategy of the Fund, its portfolio may be significantly invested in one or more sectors as a result of the security selection decisions made pursuant to its strategy. As of March 31, 2026, a significant portion of the Fund’s assets consisted of securities of companies in the industrials and financials sectors, although this may change from time to time.

Strategy Portfolio Concentration [Text]

Under normal circumstances, the Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in small- and mid-capitalization companies.