|
Segment Reporting (Detail) - Long-lived Asset Information By Location (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Long-lived Asset Information by Location [Abstract] | ||
| United States | $ 4,646 | $ 3,116 |
| Japan | 21 | 28 |
| Total long-lived assets | $ 4,667 | $ 3,144 |