Accounts Payable and Accrued Expenses

12 Months Ended

Dec. 31, 2011

Accounts Payable and Accrued Expenses [Abstract]

Accounts Payable and Accrued Expenses

5. Accounts Payable and Accrued Expenses

Major components	December 31,
	2011		2010
Research and development expenses	$	1,316,095	$	2,058,782
Professional fees		715,672		1,140,044
General and administrative expenses		99,746		270,920
Compensation related expenses		78,716		107,063
	$	2,210,229	$	3,576,809