| Schedule of Cash Equivalents and Marketable Securities |
Cash equivalents and marketable securities consisted of the following:
|
|
|
September 30, 2018
|
|
|
|
|
Amortized
Cost Basis
|
|
|
Unrealized
Gains
|
|
|
Unrealized
Losses
|
|
|
Fair
Value
|
|
|
|
|
(in thousands)
|
|
|
Money market funds
|
|
$
|
31,879
|
|
|
$
|
–
|
|
|
$
|
–
|
|
|
$
|
31,879
|
|
|
Commercial paper
|
|
|
34,939
|
|
|
|
–
|
|
|
|
–
|
|
|
|
34,939
|
|
|
Corporate debt securities
|
|
|
15,781
|
|
|
|
1
|
|
|
|
(8
|
)
|
|
|
15,774
|
|
|
Asset-based securities
|
|
|
16,876
|
|
|
|
–
|
|
|
|
(12
|
)
|
|
|
16,864
|
|
|
U.S. government agencies
|
|
|
23,776
|
|
|
|
–
|
|
|
|
(9
|
)
|
|
|
23,767
|
|
|
Total
|
|
|
123,251
|
|
|
|
1
|
|
|
|
(29
|
)
|
|
|
123,223
|
|
|
Less amounts classified as cash equivalents
|
|
|
(41,626
|
)
|
|
|
–
|
|
|
|
–
|
|
|
|
(41,626
|
)
|
|
Total marketable securities
|
|
$
|
81,625
|
|
|
$
|
1
|
|
|
$
|
(29
|
)
|
|
$
|
81,597
|
|
|
|
|
December 31, 2017
|
|
|
|
|
Amortized
Cost Basis
|
|
|
Unrealized
Gains
|
|
|
Unrealized
Losses
|
|
|
Fair
Value
|
|
|
|
|
(in thousands)
|
|
|
Money market funds
|
|
$
|
6,578
|
|
|
$
|
–
|
|
|
$
|
–
|
|
|
$
|
6,578
|
|
|
Commercial paper
|
|
|
7,689
|
|
|
|
–
|
|
|
|
–
|
|
|
|
7,689
|
|
|
Corporate debt securities
|
|
|
800
|
|
|
|
–
|
|
|
|
–
|
|
|
|
800
|
|
|
U.S. government agencies
|
|
|
3,893
|
|
|
|
–
|
|
|
|
–
|
|
|
|
3,893
|
|
|
Total
|
|
|
18,960
|
|
|
|
–
|
|
|
|
–
|
|
|
|
18,960
|
|
|
Less amounts classified as cash equivalents
|
|
|
(18,960
|
)
|
|
|
–
|
|
|
|
–
|
|
|
|
(18,960
|
)
|
|
Total marketable securities
|
|
$
|
–
|
|
|
$
|
–
|
|
|
$
|
–
|
|
|
$
|
–
|
|
|