Accrued Liabilities

9 Months Ended

Sep. 30, 2013

Accrued Liabilities

Accrued Liabilities

2. Accrued Liabilities

Accrued liabilities consist of the following (in thousands):

	September 30, 2013		December 31, 2012
Accrued compensation expenses	$	1,248	$	1,360
Accrued consulting fees	42		28
Accrued legal and professional fees	294		84
Accrued Genzyme co-promotion fees	2,322		2,175
Accrued other	510		373
Accrued liabilities	$	4,416	$	4,020