Summary of Cash, Cash Equivalents and Marketable Securities Available-for-sale |
The following
is a summary of cash, cash equivalents and marketable securities
available-for-sale as of June 30, 2013 and December 31,
2012 (in thousands):
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Amortized Cost |
|
|
Unrealized Gains |
|
|
Unrealized Losses |
|
|
Estimated Fair Value |
|
June 30,
2013
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Cash and cash
equivalents:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Cash
|
|
$ |
2,068 |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
2,068 |
|
Money market
funds
|
|
|
15,142 |
|
|
|
— |
|
|
|
— |
|
|
|
15,142 |
|
Municipal
securities
|
|
|
375 |
|
|
|
— |
|
|
|
— |
|
|
|
375 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Total cash and cash
equivalents
|
|
|
17,585 |
|
|
|
— |
|
|
|
— |
|
|
|
17,585 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Marketable securities
available-for-sale:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. treasury
securities
|
|
|
2,499 |
|
|
|
1 |
|
|
|
— |
|
|
|
2,500 |
|
U.S. government agency
securities
|
|
|
69,073 |
|
|
|
12 |
|
|
|
(9 |
) |
|
|
69,076 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Total marketable securities
available-for-sale
|
|
|
71,572 |
|
|
|
13 |
|
|
|
(9 |
) |
|
|
71,576 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Total cash, cash
equivalents and marketable securities
|
|
$ |
89,157 |
|
|
$ |
13 |
|
|
$ |
(9 |
) |
|
$ |
89,161 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
December 31,
2012
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Cash and cash
equivalents:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Cash
|
|
$ |
1,542 |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
1,542 |
|
Money market
funds
|
|
|
3,140 |
|
|
|
— |
|
|
|
— |
|
|
|
3,140 |
|
Municipal
securities
|
|
|
2,202 |
|
|
|
— |
|
|
|
— |
|
|
|
2,202 |
|
U.S. government agency
securities
|
|
|
715 |
|
|
|
— |
|
|
|
— |
|
|
|
715 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Total cash and cash
equivalents
|
|
|
7,599 |
|
|
|
— |
|
|
|
— |
|
|
|
7,599 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Marketable securities
available-for-sale:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
U.S. government agency
securities
|
|
|
116,986 |
|
|
|
46 |
|
|
|
(1 |
) |
|
|
117,031 |
|
U.S. treasury
securities
|
|
|
500 |
|
|
|
— |
|
|
|
— |
|
|
|
500 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Total marketable securities
available-for-sale
|
|
|
117,486 |
|
|
|
46 |
|
|
|
(1 |
) |
|
|
117,531 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Total cash, cash
equivalents and marketable securities
|
|
$ |
125,085 |
|
|
$ |
46 |
|
|
$ |
(1 |
) |
|
$ |
125,130 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Summary of Amortized Cost and Estimated Fair Value of Marketable Securities Available-for-sale |
The following
is a summary of the amortized cost and estimated fair value of
marketable securities available-for-sale at June 30, 2013, by
contractual maturity (in thousands):
|
|
|
|
|
|
|
|
|
|
|
June 30,
2013 |
|
|
|
Amortized
Cost |
|
|
Estimated Fair
Value |
|
Mature in one year or
less
|
|
$ |
54,029 |
|
|
$ |
54,034 |
|
Mature after one year
through two years
|
|
|
17,543 |
|
|
|
17,542 |
|
|
|
|
|
|
|
|
|
|
|
|
$ |
71,572 |
|
|
$ |
71,576 |
|
|
|
|
|
|
|
|
|
|
|