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Marketable Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 89,268
Gross Unrealized Gains	26
Gross Unrealized Losses	(10)
Fair Value	89,284
Government-sponsored enterprises
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	13,216
Gross Unrealized Gains	6
Gross Unrealized Losses	0
Fair Value	13,222
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	76,052	$ 12,738
Gross Unrealized Gains	20	0
Gross Unrealized Losses	(10)	(3)
Fair Value	$ 76,062	$ 12,735

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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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