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Marketable Securities, Available for Sale (Tables)
9 Months Ended
Sep. 30, 2015
Investments Debt And Equity Securities [Abstract]  
Summary of Available-for-Sale Marketable Securities

The following is a summary of available-for-sale marketable securities (in thousands):

 

September 30, 2015

 

Amortized

Cost

 

 

Unrealized

Gain

 

 

Unrealized

Loss

 

 

Market

Value

 

U.S. treasuries

 

$

5,030

 

 

$

5

 

 

$

 

 

$

5,035

 

Government-sponsored enterprise securities

 

 

2,000

 

 

 

 

 

 

 

 

 

2,000

 

Corporate bonds

 

 

2,005

 

 

 

 

 

 

 

 

 

2,005

 

Certificates of deposit

 

 

10,824

 

 

 

 

 

 

 

 

 

10,824

 

 

 

$

19,859

 

 

$

5

 

 

$

-

 

 

$

19,864

 

 

December 31, 2014

 

Amortized

Cost

 

 

Unrealized

Gain

 

 

Unrealized

Loss

 

 

Market

Value

 

U.S. treasuries

 

$

5,558

 

 

$

 

 

$

1

 

 

$

5,557

 

Government-sponsored enterprise securities

 

 

7,499

 

 

 

 

 

 

6

 

 

 

7,493

 

Corporate bonds

 

 

2,025

 

 

 

 

 

 

5

 

 

 

2,020

 

Certificates of deposit

 

 

8,429

 

 

 

 

 

 

 

 

 

8,429

 

 

 

$

23,511

 

 

$

-

 

 

$

12

 

 

$

23,499