Accrued Liabilities

3 Months Ended

Mar. 31, 2012

Accrued Liabilities [Abstract]

Accrued Liabilities

7. Accrued Liabilities

Accrued liabilities consist of the following:

	March 31,	December 31,
	2012	2011
Accrued salaries, bonus, and benefits	$3,069,403	$3,229,382
Accrued research and development	19,683	27,044
Accrued legal and other professional fees	104,200	25,000
Other	2,317,123	2,421,740
Total accrued liabilities	$5,510,409	$5,703,166