| Schedule of cash and available-for-sale investments' adjusted cost, gross unrealized gains, gross unrealized losses and fair value by significant investment category recorded as cash and cash equivalents or short- or long-term investments |
The following tables show the Company’s cash and available-for-sale investments’ adjusted cost, gross unrealized gains, gross unrealized losses and fair value by significant investment category recorded as cash and cash equivalents or short- or long-term investments as of December 31, 2014 and March 31, 2015 (in thousands):
|
|
|
December 31, 2014
|
|
|
|
|
Adjusted
Cost
|
|
Unrealized
Gains
|
|
Unrealized
Losses
|
|
Fair Value
|
|
Cash and
Cash
Equivalents
|
|
Short-term
Investments
|
|
Long-term
Investments
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Cash
|
|
$
|
13,077
|
|
$
|
—
|
|
$
|
—
|
|
$
|
13,077
|
|
$
|
13,077
|
|
$
|
—
|
|
$
|
—
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Level 1:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Money market funds
|
|
16,110
|
|
—
|
|
—
|
|
16,110
|
|
16,110
|
|
—
|
|
—
|
|
|
Subtotal
|
|
16,110
|
|
—
|
|
—
|
|
16,110
|
|
16,110
|
|
—
|
|
—
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Level 2:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Asset-backed securities
|
|
4,458
|
|
—
|
|
(3
|
)
|
4,455
|
|
—
|
|
—
|
|
4,455
|
|
|
Corporate bonds
|
|
54,321
|
|
2
|
|
(46
|
)
|
54,277
|
|
—
|
|
46,726
|
|
7,551
|
|
|
Commercial paper
|
|
6,797
|
|
—
|
|
—
|
|
6,797
|
|
—
|
|
6,797
|
|
—
|
|
|
U.S. agency securities
|
|
2,503
|
|
—
|
|
—
|
|
2,503
|
|
—
|
|
—
|
|
2,503
|
|
|
Subtotal
|
|
68,079
|
|
2
|
|
(49
|
)
|
68,032
|
|
—
|
|
53,523
|
|
14,509
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Total
|
|
$
|
97,266
|
|
$
|
2
|
|
$
|
(49
|
)
|
$
|
97,219
|
|
$
|
29,187
|
|
$
|
53,523
|
|
$
|
14,509
|
|
|
|
|
March 31, 2015
|
|
|
|
|
Adjusted
Cost
|
|
Unrealized
Gains
|
|
Unrealized
Losses
|
|
Fair Value
|
|
Cash and
Cash
Equivalents
|
|
Short-term
Investments
|
|
Long-term
Investments
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Cash
|
|
$
|
4,875
|
|
$
|
—
|
|
$
|
—
|
|
$
|
4,875
|
|
$
|
4,875
|
|
$
|
—
|
|
$
|
—
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Level 1:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Money market funds
|
|
9,762
|
|
—
|
|
—
|
|
9,762
|
|
9,762
|
|
—
|
|
—
|
|
|
U.S. government notes
|
|
1,000
|
|
—
|
|
—
|
|
1,000
|
|
—
|
|
—
|
|
1,000
|
|
|
Subtotal
|
|
10,762
|
|
—
|
|
—
|
|
10,762
|
|
9,762
|
|
—
|
|
1,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Level 2:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Asset-backed securities
|
|
7,056
|
|
1
|
|
(2
|
)
|
7,055
|
|
—
|
|
—
|
|
7,055
|
|
|
Corporate bonds
|
|
52,525
|
|
14
|
|
(26
|
)
|
52,513
|
|
—
|
|
43,307
|
|
9,206
|
|
|
Commercial paper
|
|
4,397
|
|
—
|
|
—
|
|
4,397
|
|
—
|
|
4,397
|
|
—
|
|
|
U.S. agency securities
|
|
4,509
|
|
3
|
|
—
|
|
4,512
|
|
—
|
|
3,003
|
|
1,509
|
|
|
Subtotal
|
|
68,487
|
|
18
|
|
(28
|
)
|
68,477
|
|
—
|
|
50,707
|
|
17,770
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Total
|
|
$
|
84,124
|
|
$
|
18
|
|
$
|
(28
|
)
|
$
|
84,114
|
|
$
|
14,637
|
|
$
|
50,707
|
|
$
|
18,770
|
|
|