| Cash Equivalents and Investments Carried at Fair Value |
The following table presents the cash equivalents and investments carried at fair value in accordance with the hierarchy defined in Note 2 (in thousands):
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Total |
Quoted prices in active markets (Level 1) |
Significant other observable inputs (Level 2) |
Significant unobservable inputs
(Level 3)
|
June 30, 2018 |
|
|
|
|
Money market funds, included in cash equivalents |
$ |
915 |
|
$ |
915 |
|
$ |
— |
|
$ |
— |
|
Investments - U.S. treasuries |
10,972 |
|
10,972 |
|
— |
|
— |
|
Investments - Asset-backed securities |
11,322 |
|
— |
|
11,322 |
|
— |
|
Investments - Corporate bonds |
78,805 |
|
— |
|
78,805 |
|
— |
|
Total |
$ |
102,014 |
|
$ |
11,887 |
|
$ |
90,127 |
|
$ |
— |
|
|
|
|
|
|
December 31, 2017 |
|
|
|
|
Money market funds, included in cash equivalents |
$ |
4,583 |
|
$ |
4,583 |
|
$ |
— |
|
$ |
— |
|
Corporate bonds, included in cash equivalents |
13,595 |
|
— |
|
13,595 |
|
— |
|
Investments - U.S. treasuries |
4,172 |
|
4,172 |
|
— |
|
— |
|
Investments - Asset-backed securities |
6,384 |
|
— |
|
6,384 |
|
— |
|
Investments - Corporate bonds |
34,117 |
|
— |
|
34,117 |
|
— |
|
Total |
$ |
62,851 |
|
$ |
8,755 |
|
$ |
54,096 |
|
$ |
— |
|
|
| Cash Equivalents and Investments |
Cash equivalents and investments at June 30, 2018 consist of the following (in thousands):
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Contractual maturity
(in days) |
Amortized Cost |
Unrealized gains |
Unrealized losses |
Fair Value |
Investments |
|
|
|
|
|
U.S. treasuries |
12-159 |
$ |
11,009 |
|
$ |
— |
|
$ |
(37 |
) |
$ |
10,972 |
|
Asset-backed securities |
16-319 |
10,640 |
|
12 |
|
(30 |
) |
10,622 |
|
Asset-backed securities |
greater than 365 |
699 |
|
1 |
|
— |
|
700 |
|
Corporate bonds |
3-299 |
77,968 |
|
969 |
|
(132 |
) |
78,805 |
|
Total |
|
$ |
100,316 |
|
$ |
982 |
|
$ |
(199 |
) |
$ |
101,099 |
|
|