Accrued Expenses (Tables)

3 Months Ended

Mar. 31, 2013

Accrued Liabilities [Abstract]

Schedule of Accrued Liabilities

Accrued expenses consist of the following:

	(in thousands)
	March 31, 2013		December 31, 2012
Compensation	$	387	$	2,131
Professional fees	153		466
Other expenses	542		615
Accrued Alferon production costs	74		70
Due for returned product	113		113
	$	1,269	$	3,395