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Marketable Securities
 12 Months Ended
Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]  
Marketable Securities
Note 5 – Marketable Securities
 
Marketable securities classified as available-for-sale as of December 31, 2018 and 2017 were comprised of (in thousands):
 
 
 
December 31, 2018
 
 
December 31, 2017
 
 
 
 
 
 
Gross
 
 
Gross
 
 
 
 
 
 
 
 
Gross
 
 
Gross
 
 
 
 
 
 
Amortized
 
 
Unrealized
 
 
Unrealized
 
 
 
 
 
Amortized
 
 
Unrealized
 
 
Unrealized
 
 
 
 
 
 
Cost
 
 
Gains
 
 
Losses
 
 
Fair Value
 
 
Cost
 
 
Gains
 
 
Losses
 
 
Fair Value
 
Asset-backed securities
 
$
4,999
 
 
$
―
 
 
$
(2
)
 
$
4,997
 
 
$
13,748
 
 
$
―
 
 
$
(5
)
 
$
13,743
 
Corporate debt securities
 
 
16,986
 
 
 
―
 
 
 
(3
)
 
 
16,983
 
 
 
37,265
 
 
 
―
 
 
 
(12
)
 
 
37,253
 
Total
 
$
21,985
 
 
$
―
 
 
$
(5
)
 
$
21,980
 
 
$
51,013
 
 
$
―
 
 
$
(17
)
 
$
50,996
 
 
Marketable Securities – Unrealized Losses
 
The Company owned 7 available-for-sale securities as of December 31, 2018. Of these 7 securities, 7 had combined unrealized losses of less than $0.1 million as of December 31, 2018. The Company did not have any investments in a loss position for greater than 12 months as of December 31, 2018. The Company has evaluated its marketable securities and has determined that none of these investments had an other-than-temporary impairment, as it has no intent to sell securities with unrealized losses and it is not likely that the Company will be required to sell any securities with material unrealized losses, given the Company’s current and anticipated financial position.