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Marketable Securities
 6 Months Ended
Jun. 30, 2015
Investments, Debt and Equity Securities [Abstract]  
Marketable Securities
Marketable Securities
The Company has classified its marketable securities as available-for-sale securities. These securities are carried at estimated fair value with unrealized holding gains and losses included in accumulated other comprehensive income/loss in stockholders' equity until realized. Gains and losses on marketable security transactions are reported on the specific-identification method. Dividend and interest income are recognized when earned.









The amortized cost, gross unrealized holding gains, gross unrealized holding losses, and fair value for available-for-sale securities by major security type and class of security at June 30, 2015 and December 31, 2014 were as follows:

 
Amortized
cost
 
Gross
unrealized
holding
gains
 
Gross
unrealized
holding
losses
 
Estimated
fair value
June 30, 2015
 
 
 
 
 
 
 
 
Available-for-sale securities:
 
 
 
 
 
 
 
 
 
Corporate bonds and notes
$
18,966

 
$
92

 
$
(90
)
 
$
18,968

 
 
Municipal bonds
6,152

 
23

 
(2
)
 
6,173

 
Total available-for-sale securities
$
25,118

 
$
115

 
$
(92
)
 
$
25,141


 
Amortized
cost
 
Gross
unrealized
holding
gains
 
Gross
unrealized
holding
losses
 
Estimated
fair value
December 31, 2014
 
 
 
 
 
 
 
 
Available-for-sale securities:
 
 
 
 
 
 
 
 
 
Corporate bonds and notes
$
19,804

 
$
89

 
$
(55
)
 
$
19,838

 
 
Municipal bonds
6,292

 
28

 
(2
)
 
6,318

 
Total available-for-sale securities
$
26,096

 
$
117

 
$
(57
)
 
$
26,156



Maturities of marketable securities classified as available-for-sale securities were as follows at June 30, 2015:

 
Amortized
cost
 
Estimated
fair value
June 30, 2015
 
 
 
 
     Due within one year
$
6,410

 
$
6,384

 
     Due after one year through five years
18,350

 
18,399

 
     Due after five years through ten years
358

 
358

 
Total available-for-sale securities
$
25,118

 
$
25,141

Debt securities in an unrealized loss position as of June 30, 2015 were not deemed impaired at acquisition and subsequent declines in fair value are not deemed attributed to declines in credit quality. Management believes that it is more likely than not that the securities will receive a full recovery of par value. The available-for-sale marketable securities in a gross unrealized loss position as of June 30, 2015 are summarized as follows:
 
Less than 12 months
 
More than 12 months
 
Total
(In thousands)
Estimated
fair value
 
Gross
unrealized
holding
losses
 
Estimated
fair value
 
Gross
unrealized
holding
losses
 
Estimated
fair value
 
Gross
unrealized
holding
losses
As of June 30, 2015
 
 
 
 
 
 
 
 
 
 
 
Corporate bonds and notes
$
7,443

 
$
(72
)
 
$
398

 
$
(18
)
 
$
7,841

 
$
(90
)
Municipal bonds
743

 
(1
)
 
230

 
(1
)
 
973

 
(2
)
 
 
 
 
 
 
 
 
 
 
 
 
 
$
8,186

 
$
(73
)
 
$
628

 
$
(19
)
 
$
8,814

 
$
(92
)