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Marketable Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 8,649	$ 13,147
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	8,649	13,147
Money market mutual funds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	8,649	13,147
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	$ 8,649	$ 13,147

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- Definition

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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