XML 23 R32.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Cash and Cash Equivalents and Short-Term Investments (Tables)
 12 Months Ended
Dec. 31, 2019
Cash and Cash Equivalents and Short-Term Investments  
Schedule of short term-investments

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Estimated

 

Carrying

 

December 31, 2018

 

Cost

 

Fair Value

 

Value

 

 

 

 

(in thousands)

 

Investments:

 

 

 

 

 

 

 

 

 

 

Short-term:

 

 

 

 

 

 

 

 

 

 

Trading securities

 

$

275

 

$

330

 

$

330

 

Total trading securities

 

 

275

 

 

330

 

 

330

 

Total short term

 

$

275

 

$

330

 

$

330