Short-Term Government Securities Fund Investment Objectives and Goals - Short-Term Government Securities Fund	Dec. 31, 2024
Prospectus [Line Items]
Risk/Return [Heading]	<span style="color:#39A872;font-family:Arial;font-size:22pt;">Short-Term Government Securities Fund</span>
Objective [Heading]	<span style="color:#39A872;font-family:Arial;font-size:10pt;font-weight:bold;">Investment Objective</span>
Objective, Primary [Text Block]	The Short-Term Government Securities Fund seeks a high level of current income from investments in a portfolio of securities backed by the full faith and credit of the U.S. Government.