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Investments
12 Months Ended
Dec. 31, 2019
Investments  
Investments

6 — Investments

Our investments consisted of corporate bonds that we have classified as available-for-sale and are summarized in the following tables:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

As of December 31, 2019

 

    

 

 

    

Gross

    

Gross

    

 

 

 

 

 

 

 

Unrealized

 

Unrealized

 

Fair

 

 

Cost

 

Gains

 

Losses

 

Value

Corporate bonds:

 

 

 

 

 

 

 

 

 

 

 

 

U.S. corporations

 

$

2,258,686

 

$

29,123

 

$

 —

 

$

2,287,809

International corporations

 

 

471,139

 

 

9,339

 

 

 —

 

 

480,478

Total

 

$

2,729,825

 

$

38,462

 

$

 —

 

$

2,768,287

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

As of December 31, 2018

 

    

 

 

    

Gross

    

Gross

    

 

 

 

 

 

 

 

Unrealized

 

Unrealized

 

Fair

 

 

Cost

 

Gains

 

Losses

 

Value

Corporate bonds:

 

 

 

 

 

 

 

 

 

 

 

 

U.S. corporations

 

$

5,487,645

 

$

 —

 

$

58,309

 

$

5,429,336

International corporations

 

 

918,417

 

 

2,162

 

 

 —

 

 

920,579

Total

 

$

6,406,062

 

$

2,162

 

$

58,309

 

$

6,349,915

 

As of December 31, 2019, the scheduled maturities of our investments are as follows:

 

 

 

 

 

 

 

 

    

Cost

    

Fair Value

Less than 1 year

 

$

471,139

 

$

480,478

1 to 3 years

 

 

2,258,686

 

 

2,287,809

Total

 

$

2,729,825

 

$

2,768,287