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Marketable Investments - Summarizes the maturity periods of the marketable investments (Details)
$ in Thousands
Sep. 30, 2021
USD ($)
Marketable Securities [Line Items]  
FY 2021 $ 1,500
FY 2022 11,471
FY 2023 4,047
Market value 17,018
Corporate obligations  
Marketable Securities [Line Items]  
FY 2021 1,500
FY 2022 11,471
FY 2023 4,047
Market value $ 17,018