Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2013

Accrued Liabilities [Abstract]

Schedule of Accrued Liabilities

Accrued expenses at December 31, 2013 and 2012 consists of the following:

	(in thousands) December 31,
	2013		2012
Compensation	$	378	$	2,131
Professional fees	270		466
Accrued Alferon production costs	51		70
Other expenses	529		615
Due for returned product	—		113
	$	1,228	$	3,395