v3.25.0.1
Average Annual Total Returns
12 Months Ended 25 Months Ended
Dec. 31, 2024
Dec. 31, 2024
Bloomberg US Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes)    
Prospectus [Line Items]    
Average Annual Return, Percent [1] 1.25% 3.30%
Nicholas Fixed Income Alternative ETF [Member]    
Prospectus [Line Items]    
Average Annual Return, Percent 3.85% 3.44%
Performance Inception Date   Nov. 29, 2022
Nicholas Fixed Income Alternative ETF [Member] | After Taxes on Distributions    
Prospectus [Line Items]    
Average Annual Return, Percent 1.46% 1.49%
Nicholas Fixed Income Alternative ETF [Member] | After Taxes on Distributions and Sales    
Prospectus [Line Items]    
Average Annual Return, Percent 2.38% 1.84%
[1] The Bloomberg U.S. Aggregate Bond Index is a broad-based benchmark that measures the investment grade, U.S. dollar-denominated, fixed-rate bond market. This includes Treasuries, government-related and corporate securities, mortgage-backed securities, asset-backed securities and collateralized mortgage-backed securities.