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Investments
 12 Months Ended
Dec. 31, 2019
Investments Debt And Equity Securities [Abstract]  
Investments

4.

Investments

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

 

 

 

Investments with original maturities of less than 90 days are included in cash and cash equivalents on the consolidated balance sheets and are not included in the table above. Investments with maturities of less than twelve months are considered current assets and those investments with maturities greater than twelve months are considered non-current assets.

 

Excluded from the table above is a restricted investment of $1,400 as the cost approximates current fair value.

 

As of December 31, 2018, the Company had no investments.