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Cash and Cash Equivalents and Short-Term Investments (Tables)
 9 Months Ended
Sep. 30, 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