Accounts Payable and Accrued Expenses

12 Months Ended

Dec. 31, 2012

Accounts payable and accrued expenses at December 31, 2012 and 2011 consist of the following:



	As of		As of
	December 31, 2012		December 31, 2011
Trade accounts payable	$	852,573	$	1,140,296
Accrued compensation	1,560,704		1,516,307
Accrued severance expenses	—		494,287
Accrued subcontract expenses	72,238		687,715
Accrued accounting and audit fees	177,810		119,225
Accrued R&D program costs	250,000		—
Other accrued expenses	268,249		361,112
	$	3,181,574	$	4,318,942