|
Stock Plans (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2014
|
Sep. 30, 2013
|
Sep. 30, 2014
|
Sep. 30, 2013
|
|
| Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ||||
| Total stock-based compensation expenses | $ 71 | $ 21 | $ 457 | $ 656 |
|
Research and Development Expense [Member]
|
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| Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ||||
| Total stock-based compensation expenses | 33 | 11 | 206 | 367 |
|
General and Administrative Expense [Member]
|
||||
| Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ||||
| Total stock-based compensation expenses | $ 38 | $ 10 | $ 251 | $ 289 |