Employee Stock Purchase Plan (Details 1) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
Employee Stock Purchase Plan [Line Items] | |||
Allocated Share-based Compensation Expense | $ 4 | $ 41 | |
Employee Stock [Member]
|
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Employee Stock Purchase Plan [Line Items] | |||
Allocated Share-based Compensation Expense | (4) | 29 | 66 |
Employee Stock [Member] | General and Administrative Expense [Member]
|
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Employee Stock Purchase Plan [Line Items] | |||
Allocated Share-based Compensation Expense | (1) | 12 | 30 |
Employee Stock [Member] | Research and Development Expense [Member]
|
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Employee Stock Purchase Plan [Line Items] | |||
Allocated Share-based Compensation Expense | $ (3) | $ 17 | $ 36 |