Accounts Payable and Accrued Expenses

6 Months Ended

Jun. 30, 2012

Accounts Payable and Accrued Expenses [Abstract]

Accounts Payable and Accrued Expenses

6.  Accounts Payable and Accrued Expenses

	June 30, 2012		December 31, 2011
Accrued payroll and related costs	$	1,779	$	3,149
Accrued consulting and clinical trial costs		1,335		1,637
Restructuring accrual		22		731
Legal and professional fees		485		371
Accounts payable		197		309
Other		165		134
Total	$	3,983	$	6,331

Accounts payable and accrued expenses decreased as of June 30, 2012, compared to year end, primarily due to the payment of 2011 accrued bonuses in the first quarter of 2012.