XML 67 R11.htm IDEA: XBRL DOCUMENT v3.20.1
Available-for-Sale Securities
3 Months Ended
Mar. 31, 2020
Investments Debt And Equity Securities [Abstract]  
Available-for-Sale Securities

4. Available-for-Sale Securities

As of March 31, 2020 and December 31, 2019, the fair value of available-for-sale securities by type of security was as follows:

 

 

 

March 31, 2020

 

 

 

Amortized

Cost

 

 

Gross

Unrealized

Gain

 

 

Gross

Unrealized

Loss

 

 

Fair

Value

 

Investments:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Corporate bond securities

 

$

401

 

 

$

 

 

$

(1

)

 

$

400

 

 

 

$

401

 

 

$

 

 

$

(1

)

 

$

400

 

 

 

 

December 31, 2019

 

 

 

Amortized

Cost

 

 

Gross

Unrealized

Gain

 

 

Gross

Unrealized

Loss

 

 

Fair

Value

 

Investments:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Corporate bond securities

 

 

1,502

 

 

 

1

 

 

 

 

 

 

1,503

 

Commercial paper

 

 

5,978

 

 

 

 

 

 

 

 

 

5,978

 

 

 

$

7,480

 

 

$

1

 

 

$

 

 

$

7,481

 

 

 

The estimated fair value and amortized cost of the Company’s available-for-sale securities by contractual maturity are summarized as follows:

 

 

 

March 31, 2020

 

 

December 31, 2019

 

 

 

Amortized

Cost

 

 

Fair

Value

 

 

Amortized

Cost

 

 

Fair

Value

 

Due in one year or less

 

$

401

 

 

$

400

 

 

$

7,480

 

 

$

7,481

 

Total available-for-sale securities

 

$

401

 

 

$

400

 

 

$

7,480

 

 

$

7,481

 

 

The weighted average maturity of the Company’s available-for-sale securities as of March 31, 2020 and December 31, 2019 was approximately 0.2 years and 0.2 years, respectively.