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Investments - Debt Securities, Available for Sale (Details) - USD ($)
Dec. 31, 2022
Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]    
Amortized Costs   $ 10,498,000
Gross Unrealized Holding Gains   0
Gross Unrealized Holding Losses   (2,000)
Fair Value $ 0 10,496,000
Commercial paper    
Debt Securities, Available-for-sale [Line Items]    
Amortized Costs   10,498,000
Gross Unrealized Holding Gains   0
Gross Unrealized Holding Losses   (2,000)
Fair Value   $ 10,496,000