v3.25.4
Average Annual Total Returns
 12 Months Ended 13 Months Ended 17 Months Ended 42 Months Ended 60 Months Ended 73 Months Ended 97 Months Ended
Feb. 28, 2026
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
S&P 500® TR Index (reflects no deduction for fees, expenses, or taxes)                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] S&P 500® TR Index(reflects no deduction for fees, expenses, or taxes)              
Average Annual Return, Percent   17.88%   19.15%   14.42%   14.43%
AAM Low Duration Preferred and Income Securities ETF Blended Index (reflects no deduction for fees, expenses, or taxes)                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] [1] AAM Low Duration Preferred and Income Securities ETF Blended Index1(reflects no deduction for fees, expenses, or taxes)              
Average Annual Return, Percent [1]   2.51%       1.58% 2.42%  
Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes)                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Bloomberg U.S. Aggregate Bond Index(reflects no deduction for fees, expenses, or taxes)              
Average Annual Return, Percent   7.30% 5.28%     (0.36%) 0.91%  
ICE 0-5 Year Duration Exchange-Listed Preferred & Hybrid Securities Index (reflects no deduction for fees, expenses, or taxes)                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] [1] ICE 0-5 Year Duration Exchange-Listed Preferred & Hybrid Securities Index2(reflects no deduction for fees, expenses, or taxes)              
Average Annual Return, Percent [1]   3.82%       1.84% 2.64%  
ICE 0-5 Year Duration Preferred & Hybrid Securities Index (reflects no deduction for fees, expenses, or taxes)                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] [2] ICE 0-5 Year Duration Preferred & Hybrid Securities Index2(reflects no deduction for fees, expenses, or taxes)              
Average Annual Return, Percent [2]   7.22%       5.70% 6.13%  
S&P 500 Dividend and Free Cash Flow Yield Index (reflects no deduction for fees, expenses, or taxes)                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] S&P 500 Dividend and Free Cash Flow Yield Index (reflects no deduction for fees, expenses, or taxes)              
Average Annual Return, Percent   11.23%       11.47%   8.44%
Russell 1000 Growth Total Return Index (reflects no deduction for fees, expenses, or taxes)                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Russell 1000 Growth Total Return Index (reflects no deduction for fees, expenses, or taxes)              
Average Annual Return, Percent   18.70%   24.79%        
Russell 2000 Growth Total Return Index (reflects no deduction for fees, expenses, or taxes)                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Russell 2000 Growth Total Return Index (reflects no deduction for fees, expenses, or taxes)              
Average Annual Return, Percent   13.01%   11.00%        
Bloomberg 1-3 Year US Government/Credit
(reflects no deduction for fees, expenses, or taxes)                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Bloomberg 1-3 Year US Government/Credit(reflects no deduction for fees, expenses, or taxes)              
Average Annual Return, Percent   5.35% 5.14%          
S&P 500® Index (reflects no deduction for fees, expenses or taxes)                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] S&P 500® Index(reflects no deduction for fees, expenses, or taxes)              
Average Annual Return, Percent   17.88%     19.73%      
Pence Transformers Index Net Total Return (reflects no deduction for fees, expenses, or taxes)                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Pence Transformers Index Net Total Return(reflects no deduction for fees, expenses, or taxes)              
Average Annual Return, Percent   26.05%     22.39%      
AAM BRENTVIEW DIVIDEND GROWTH ETF Class                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return Before Taxes              
Average Annual Return, Percent   18.47%   15.91%        
Performance Inception Date Jul. 30, 2024              
AAM BRENTVIEW DIVIDEND GROWTH ETF Class | After Taxes on Distributions                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions              
Average Annual Return, Percent   18.13%   15.56%        
AAM BRENTVIEW DIVIDEND GROWTH ETF Class | After Taxes on Distributions and Sales                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Shares              
Average Annual Return, Percent   11.15%   12.17%        
AAM Low Duration Preferred and Income Securities ETF Class                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return Before Taxes              
Average Annual Return, Percent   1.91%       1.18% 1.99%  
Performance Inception Date Nov. 19, 2019              
AAM Low Duration Preferred and Income Securities ETF Class | After Taxes on Distributions                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions              
Average Annual Return, Percent   0.10%       (0.53%) 0.28%  
AAM Low Duration Preferred and Income Securities ETF Class | After Taxes on Distributions and Sales                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares              
Average Annual Return, Percent   1.68%       0.55% 1.15%  
AAM S&P 500 High Dividend Value ETF Class                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return Before Taxes              
Average Annual Return, Percent   10.83%       11.07%   8.07%
Performance Inception Date Nov. 28, 2017              
AAM S&P 500 High Dividend Value ETF Class | After Taxes on Distributions                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions              
Average Annual Return, Percent   9.79%       10.06%   7.08%
AAM S&P 500 High Dividend Value ETF Class | After Taxes on Distributions and Sales                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares              
Average Annual Return, Percent   6.96%       8.61%   6.23%
AAM SAWGRASS U.S. LARGE CAP QUALITY GROWTH ETF Class                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return Before Taxes              
Average Annual Return, Percent   11.24%   12.91%        
Performance Inception Date Jul. 30, 2024              
AAM SAWGRASS U.S. LARGE CAP QUALITY GROWTH ETF Class | After Taxes on Distributions                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions              
Average Annual Return, Percent   11.17%   12.82%        
AAM SAWGRASS U.S. LARGE CAP QUALITY GROWTH ETF Class | After Taxes on Distributions and Sales                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Shares              
Average Annual Return, Percent   6.71%   9.89%        
AAM SAWGRASS U.S. SMALL CAP QUALITY GROWTH ETF Class                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return Before Taxes              
Average Annual Return, Percent   7.34%   7.89%        
Performance Inception Date Jul. 30, 2024              
AAM SAWGRASS U.S. SMALL CAP QUALITY GROWTH ETF Class | After Taxes on Distributions                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions              
Average Annual Return, Percent   7.34%   7.88%        
AAM SAWGRASS U.S. SMALL CAP QUALITY GROWTH ETF Class | After Taxes on Distributions and Sales                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Shares              
Average Annual Return, Percent   4.35%   6.03%        
AAM SLC Low Duration Income ETF Class                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return Before Taxes              
Average Annual Return, Percent   6.39% 6.11%          
Performance Inception Date Dec. 03, 2024              
AAM SLC Low Duration Income ETF Class | After Taxes on Distributions                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions              
Average Annual Return, Percent   4.18% 3.92%          
AAM SLC Low Duration Income ETF Class | After Taxes on Distributions and Sales                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Shares              
Average Annual Return, Percent   3.74% 3.72%          
AAM Transformers ETF Class                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return Before Taxes              
Average Annual Return, Percent   25.60%     21.82%      
Performance Inception Date Jul. 11, 2022              
AAM Transformers ETF Class | After Taxes on Distributions                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions              
Average Annual Return, Percent   25.54%     21.81%      
AAM Transformers ETF Class | After Taxes on Distributions and Sales                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares              
Average Annual Return, Percent   15.19%     17.49%      
[1] The ICE 0-5 Year Duration Exchange-Listed Preferred & Hybrid Securities Index through June 30, 2025; ICE 0-5 Year Duration Preferred & Hybrid Securities Index thereafter.
[2] As of July 1, 2025, the Fund replaced the Fund’s underlying index, the ICE 0-5 Year Duration Exchange-Listed Preferred & Hybrid Securities Index, with the ICE 0-5 Year Duration Preferred & Hybrid Securities Index in conjunction with the addition of non-listed preferred securities to the Fund’s investment strategy.