| **Accounts Payable and Accrued Expenses (Tables)**   | 9 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                     |
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| **Accounts Payable and Accrued Expenses [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                               |
| Schedule of accounts payable and accrued expenses    |   September 30,2012 December 31,2011Accrued payroll and related costs $1,845 $3,149Accrued consulting and clinical trial costs  1,964  1,637Restructuring costs  1,886  731Legal and professional fees  593  371Accounts payable  125  309Other  73  134Total $6,486 $6,331 |

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| - Definition
Tabular disclosure of the (a) carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business (accounts payable); (b) other payables; and (c) accrued liabilities. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). An alternative caption includes accrued expenses.
+ References
No definition available.
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