Accounts Payable and Accrued Expenses

9 Months Ended

Sep. 30, 2012

Accounts Payable and Accrued Expenses [Abstract]

Accounts Payable and Accrued Expenses

6.  Accounts Payable and Accrued Expenses

	September 30, 2012		December 31, 2011
Accrued payroll and related costs	$	1,845	$	3,149
Accrued consulting and clinical trial costs		1,964		1,637
Restructuring costs		1,886		731
Legal and professional fees		593		371
Accounts payable		125		309
Other		73		134
Total	$	6,486	$	6,331

Accounts payable and accrued expenses increased as of September 30, 2012, compared to year end, primarily due to higher restructuring costs and legal and professional fees, partially offset by decrease due to the payment of 2011 accrued bonuses in the first quarter of 2012.