| Investments, Held-to-Maturity Securities |
| |
|
|
|
|
Gross Unrealized |
|
|
|
|
| |
|
Cost |
|
|
Gains |
|
|
Losses |
|
|
Fair value |
|
| As of December 31, 2015: |
|
|
|
|
|
|
|
|
|
|
|
|
| Short-term Investments: |
|
|
|
|
|
|
|
|
|
|
|
|
| Corporate bonds |
|
$ |
44 |
|
|
$ |
-- |
|
|
$ |
-- |
|
|
$ |
44 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Long-term Investments: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Corporate bonds |
|
$ |
5,555 |
|
|
$ |
-- |
|
|
$ |
(30 |
) |
|
$ |
5,525 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| As of December 31, 2014: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Short-term Investments: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Corporate bonds |
|
$ |
3,084 |
|
|
$ |
-- |
|
|
$ |
(6 |
) |
|
$ |
3,078 |
|
| Long-term Investments: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Corporate and government bonds |
|
$ |
18,428 |
|
|
$ |
21 |
|
|
$ |
(292 |
) |
|
$ |
18,157 |
|
|
| Investments, Available for sale |
| |
|
|
|
|
Gross Unrealized |
|
|
|
|
| |
|
Cost |
|
|
Gains |
|
|
Losses |
|
|
Fair value |
|
| As of December 31, 2015: |
|
|
|
|
|
|
|
|
|
|
|
|
| Long-term Investments: |
|
|
|
|
|
|
|
|
|
|
|
|
| Equity investments |
|
$ |
3,876 |
|
|
$ |
435 |
|
|
$ |
-- |
|
|
$ |
4,311 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| As of December 31, 2014: |
|
|
|
|
|
|
|
|
|
|
|
|
| Long-term Investments: |
|
|
|
|
|
|
|
|
|
|
|
|
| Equity investments |
|
$ |
3,708 |
|
|
$ |
-- |
|
|
$ |
(376 |
) |
|
$ |
3,332 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|