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Siebert Williams Shank Shares For Participants [Member] Investment Objectives and Goals - Siebert Williams Shank Shares - U.S. GOVERNMENT SELECT PORTFOLIO
Nov. 30, 2025
Prospectus [Line Items]  
Risk/Return [Heading] U.S. GOVERNMENT SELECT PORTFOLIO
Objective [Heading] INVESTMENT OBJECTIVE
Objective, Primary [Text Block]
The Portfolio seeks to maximize current income to the extent consistent with the preservation of capital and maintenance of liquidity by investing exclusively in high quality money market instruments.