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Investments (Tables)
 12 Months Ended
Dec. 31, 2019
Investments Debt And Equity Securities [Abstract]  
Schedule of Investments by Security Type Investments by security type consisted of the following at December 31, 2019:

 

 

December 31, 2019

 

 

 

Amortized

Cost

 

 

Gross

Unrealized Gain

 

 

Gross

Unrealized Loss

 

 

Fair

Value

 

Investments:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Commercial Paper

 

$

11,957

 

 

$

—

 

 

$

—

 

 

$

11,957

 

Corporate Bonds

 

 

17,732

 

 

 

3

 

 

 

(2

)

 

 

17,733

 

 

 

$

29,689

 

 

$

3

 

 

$

(2

)

 

$

29,690