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Investments, Debt and Equity Securities (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 USD ($)
Debt Securities, Available-for-Sale [Line Items] |
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One | $ 41,524
Available-for-sale - maturities within one year, Gross unrealized gains | 1
Available-for-sale - matures within one year, Gross unrealized losses | (182)
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One | 41,343
Corporate Bond Securities |
Debt Securities, Available-for-Sale [Line Items] |
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One | 9,305
Available-for-sale - maturities within one year, Gross unrealized gains | 0
Available-for-sale - matures within one year, Gross unrealized losses | (66)
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One | 9,239
Municipal Bonds |
Debt Securities, Available-for-Sale [Line Items] |
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One | 1,751
Available-for-sale - maturities within one year, Gross unrealized gains | 0
Available-for-sale - matures within one year, Gross unrealized losses | (4)
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One | 1,747
US Treasury Securities |
Debt Securities, Available-for-Sale [Line Items] |
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One | 16,306
Available-for-sale - maturities within one year, Gross unrealized gains | 0
Available-for-sale - matures within one year, Gross unrealized losses | (111)
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One | 16,195
Commercial Paper |
Debt Securities, Available-for-Sale [Line Items] |
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One | 11,237
Available-for-sale - maturities within one year, Gross unrealized gains | 0
Available-for-sale - matures within one year, Gross unrealized losses | 0
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One | 11,237
Agency Securities |
Debt Securities, Available-for-Sale [Line Items] |
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One | 2,925
Available-for-sale - maturities within one year, Gross unrealized gains | 1
Available-for-sale - matures within one year, Gross unrealized losses | (1)
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One | $ 2,925

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