This annual shareholder report contains important information about the Federated Hermes Municipal Ultrashort Fund (the “Fund”) for the period of October 1, 2024 to September 30, 2025.

Shareholder Report Annual or Semi-Annual

annual shareholder report

Additional Information [Text Block]

You can find additional information about the Fund at FederatedHermes.com/us/FundInformation. You can also request this information by contacting us at 1‑800‑341‑7400, Option 4, or your financial advisor.

Material Fund Change Notice [Text Block]

This report describes changes made to or planned for the Fund since the beginning of the reporting period.

Additional Information Phone Number

1‑800‑341‑7400

Additional Information Website

FederatedHermes.com/us/FundInformation

Expenses [Text Block]

What were the Fund costs for the last year?

(Based on a hypothetical $10,000 investment)

Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class R6 Shares	$35	0.34%

Expenses Paid, Amount

$ 35

Expense Ratio, Percent

0.34%

Factors Affecting Performance [Text Block]

Management's Discussion of Fund Performance

The following discussion compares the performance of the Fund to the Bloomberg 1-Year US Municipal Bond Index (the “Index”) to show how the Fund’s performance compares to the returns of similar investments for the reporting period. See the Average Annual Total Returns table below for the returns of the Fund and related indexes, including the S&P Municipal Bond Index, which represents the overall U.S. municipal fixed-income market. The Fund seeks to provide current income exempt from federal regular income tax.

Top Contributors to Performance

Credit allocation contributed positively to relative performance, with significant overweight positions relative to the Index in A-rated and BBB-rated securities, both of which outperformed the Index.
Sector allocation contributed positively, with a significant overweight position in multi-family housing and industrial development/pollution control inclusive of prepaid gas utility and electric and gas utility bonds. An underweight position in state general obligation and pre-refunded sectors also contributed positively.
Yield curve allocations contributed positively with tactical longer duration allocations (approximately 15% of Fund holdings) to bonds with durations of 2.0 to 4.0 years, which added to relative performance.

Top Detractors from Performance

Duration of the Fund was a detractor from relative performance. The Fund’s typical dollar-weighted average duration is limited by its prospectus to one year or less, while the Index had a duration of about 1.25 years. While the Fund’s duration ranged from roughly 0.75 years to 0.95 years over the period, it was structurally short of the Index. In a period of volatile and net declining rates, this detracted from performance as prices of bonds with longer durations rose more than those with shorter durations.
Security selection was a detractor in a net declining interest rate environment, namely the Fund’s approximately 35-40% structural barbell allocation to variable- and floating-rate securities (not included in the Index). While these bonds provided average tax-exempt income over much of the period, they did not participate in the price gains of longer duration fixed coupon bonds.

Performance Past Does Not Indicate Future [Text]

Keep in mind that 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

Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future. The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.

Cumulative Performance: September 30, 2015 through September 30, 2025

Initial Investment of $10,000

Average Annual Return [Table Text Block]

Average Annual Total Returns
	1 Year	5 Years	10 Years
Class R6 Shares	3.15%	2.08%	1.68%
S&P Municipal Bond Index	1.69%	1.09%	2.44%
Bloomberg 1-Year US Municipal Bond Index	3.02%	1.65%	1.52%
50% Bloomberg 1-Year US Municipal Bond/50% Lipper Tax-Exempt Money Market Funds	2.78%	1.69%	1.34%
Lipper Short Municipal Debt Funds Average	3.11%	1.56%	1.41%

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.

Updated Performance Information Location [Text Block]

Visit FederatedHermes.com/us/FundInformation and click on the link to your fund and share class for more recent performance information.

Net Assets

$ 1,357,482,037

Holdings Count | Holding

264

Advisory Fees Paid, Amount

$ 2,654,665

Investment Company Portfolio Turnover

47.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Net Assets	$1,357,482,037
Number of Investments	264
Portfolio Turnover Rate	47%
Total Advisory Fees Paid	$2,654,665

Holdings [Text Block]

Fund Holdings

Top Sectors
(% of Net Assets)

Graphical Representation - Allocation 1 Chart

Material Fund Change [Text Block]

Material Fund Changes

Following is a summary of material changes made to or planned for the Fund since the beginning of the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at FederatedHermes.com/us/FundInformation or upon request at 1-800-341-7400, Option 4, or by contacting your financial advisor.

Effective February 10, 2025, Ann Ferentino has been added to the Fund’s portfolio management team.

Effective May 1, 2025, Jeff A. Kozemchak, Senior Portfolio Manager, retired from the Fund’s Adviser. Effective upon his retirement, Mr. Kozemchak no longer serves as a portfolio manager of the Fund. The other members of the management team continue to manage the Fund.

Effective April 2, 2026, Mary Jo Ochson will retire and no longer serve as a portfolio manager of the Fund as of that date. The other members of the portfolio management team will continue to manage the Fund.

Summary of Change Legend [Text Block]

Updated Prospectus Phone Number

1-800-341-7400

Updated Prospectus Web Address

FederatedHermes.com/us/FundInformation

C000026756 [Member]

Shareholder Report [Line Items]

Fund Name

Federated Hermes Municipal Ultrashort Fund

Class Name

Institutional Shares

Trading Symbol

FMUSX

Annual or Semi-Annual Statement [Text Block]

This annual shareholder report contains important information about the Federated Hermes Municipal Ultrashort Fund (the “Fund”) for the period of October 1, 2024 to September 30, 2025.

Shareholder Report Annual or Semi-Annual

annual shareholder report

Additional Information [Text Block]

Material Fund Change Notice [Text Block]

This report describes changes made to or planned for the Fund since the beginning of the reporting period.

Additional Information Phone Number

1‑800‑341‑7400

Additional Information Website

FederatedHermes.com/us/FundInformation

Expenses [Text Block]

What were the Fund costs for the last year?

(Based on a hypothetical $10,000 investment)

Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Institutional Shares	$37	0.36%

Expenses Paid, Amount

$ 37

Expense Ratio, Percent

0.36%

Factors Affecting Performance [Text Block]

Management's Discussion of Fund Performance

Top Contributors to Performance

Credit allocation contributed positively to relative performance, with significant overweight positions relative to the Index in A-rated and BBB-rated securities, both of which outperformed the Index.
Sector allocation contributed positively, with a significant overweight position in multi-family housing and industrial development/pollution control inclusive of prepaid gas utility and electric and gas utility bonds. An underweight position in state general obligation and pre-refunded sectors also contributed positively.
Yield curve allocations contributed positively with tactical longer duration allocations (approximately 15% of Fund holdings) to bonds with durations of 2.0 to 4.0 years, which added to relative performance.

Top Detractors from Performance

Duration of the Fund was a detractor from relative performance. The Fund’s typical dollar-weighted average duration is limited by its prospectus to one year or less, while the Index had a duration of about 1.25 years. While the Fund’s duration ranged from roughly 0.75 years to 0.95 years over the period, it was structurally short of the Index. In a period of volatile and net declining rates, this detracted from performance as prices of bonds with longer durations rose more than those with shorter durations.
Security selection was a detractor in a net declining interest rate environment, namely the Fund’s approximately 35-40% structural barbell allocation to variable- and floating-rate securities (not included in the Index). While these bonds provided average tax-exempt income over much of the period, they did not participate in the price gains of longer duration fixed coupon bonds.

Performance Past Does Not Indicate Future [Text]

Keep in mind that 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

Cumulative Performance: September 30, 2015 through September 30, 2025

Initial Investment of $10,000

Average Annual Return [Table Text Block]

Average Annual Total Returns
	1 Year	5 Years	10 Years
Institutional Shares	3.13%	2.06%	1.66%
S&P Municipal Bond Index	1.69%	1.09%	2.44%
Bloomberg 1-Year US Municipal Bond Index	3.02%	1.65%	1.52%
50% Bloomberg 1-Year US Municipal Bond/50% Lipper Tax-Exempt Money Market Funds	2.78%	1.69%	1.34%
Lipper Short Municipal Debt Funds Average	3.11%	1.56%	1.41%

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.

Updated Performance Information Location [Text Block]

Visit FederatedHermes.com/us/FundInformation and click on the link to your fund and share class for more recent performance information.

Net Assets

$ 1,357,482,037

Holdings Count | Holding

264

Advisory Fees Paid, Amount

$ 2,654,665

Investment Company Portfolio Turnover

47.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Net Assets	$1,357,482,037
Number of Investments	264
Portfolio Turnover Rate	47%
Total Advisory Fees Paid	$2,654,665

Holdings [Text Block]

Fund Holdings

Top Sectors
(% of Net Assets)

Material Fund Change [Text Block]

Material Fund Changes

Effective February 10, 2025, Ann Ferentino has been added to the Fund’s portfolio management team.

Summary of Change Legend [Text Block]

Updated Prospectus Phone Number

1-800-341-7400

Updated Prospectus Web Address

FederatedHermes.com/us/FundInformation

C000026755 [Member]

Shareholder Report [Line Items]

Fund Name

Federated Hermes Municipal Ultrashort Fund

Class Name

Class A Shares

Trading Symbol

FMUUX

Annual or Semi-Annual Statement [Text Block]

This annual shareholder report contains important information about the Federated Hermes Municipal Ultrashort Fund (the “Fund”) for the period of October 1, 2024 to September 30, 2025.

Shareholder Report Annual or Semi-Annual

annual shareholder report

Additional Information [Text Block]

Material Fund Change Notice [Text Block]

This report describes changes made to or planned for the Fund since the beginning of the reporting period.

Additional Information Phone Number

1‑800‑341‑7400

Additional Information Website

FederatedHermes.com/us/FundInformation

Expenses [Text Block]

What were the Fund costs for the last year?

(Based on a hypothetical $10,000 investment)

Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class A Shares	$52	0.51%

Expenses Paid, Amount

$ 52

Expense Ratio, Percent

0.51%

Factors Affecting Performance [Text Block]

Management's Discussion of Fund Performance

Top Contributors to Performance

Credit allocation contributed positively to relative performance, with significant overweight positions relative to the Index in A-rated and BBB-rated securities, both of which outperformed the Index.
Sector allocation contributed positively, with a significant overweight position in multi-family housing and industrial development/pollution control inclusive of prepaid gas utility and electric and gas utility bonds. An underweight position in state general obligation and pre-refunded sectors also contributed positively.
Yield curve allocations contributed positively with tactical longer duration allocations (approximately 15% of Fund holdings) to bonds with durations of 2.0 to 4.0 years, which added to relative performance.

Top Detractors from Performance

Duration of the Fund was a detractor from relative performance. The Fund’s typical dollar-weighted average duration is limited by its prospectus to one year or less, while the Index had a duration of about 1.25 years. While the Fund’s duration ranged from roughly 0.75 years to 0.95 years over the period, it was structurally short of the Index. In a period of volatile and net declining rates, this detracted from performance as prices of bonds with longer durations rose more than those with shorter durations.
Security selection was a detractor in a net declining interest rate environment, namely the Fund’s approximately 35-40% structural barbell allocation to variable- and floating-rate securities (not included in the Index). While these bonds provided average tax-exempt income over much of the period, they did not participate in the price gains of longer duration fixed coupon bonds.

Performance Past Does Not Indicate Future [Text]

Keep in mind that 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

Cumulative Performance: September 30, 2015 through September 30, 2025

Initial Investment of $10,000

Average Annual Return [Table Text Block]

Average Annual Total Returns
	1 Year	5 Years	10 Years
Class A Shares	2.97%	1.90%	1.38%
S&P Municipal Bond Index	1.69%	1.09%	2.44%
Bloomberg 1-Year US Municipal Bond Index	3.02%	1.65%	1.52%
50% Bloomberg 1-Year US Municipal Bond/50% Lipper Tax-Exempt Money Market Funds	2.78%	1.69%	1.34%
Lipper Short Municipal Debt Funds Average	3.11%	1.56%	1.41%