Accrued Expenses (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Accrued Expenses [Abstract]
Compensation	$ 256	$ 821
Professional fees	233	215
Other expenses	609	495
Accrued Alferon production cost	425	0
Due for returned product	113	113
Total Accrued Expenses	$ 1,636	$ 1,644