Accrued Liabilities

6 Months Ended

12 Months Ended

Jun. 30, 2011

Dec. 31, 2010

Accrued Liabilities

Accrued Liabilities

Note 4. Accrued Liabilities

Accrued liabilities consist of the following (in thousands):

	March 31, 2011		December 31, 2010
Clinical trials	$	274	$	138
Accrued expenses		429		716
Compensation		223		176
Severance		0		194
	$	926	$	1,224

Accrued expenses above consist of general operating expenses such as legal and accounting fees, consulting, benefits and preferred dividends.

Note 5. Accrued Liabilities

Accrued liabilities consisted of the following (in thousands):

	December 31,
	2010		2009
Clinical trials	$	138	$	6,550
Accrued expenses		716		803
Compensation		176		326
Severance		194		—
	$	1,224	$	7,679