Accounts Receivable

9 Months Ended

Sep. 30, 2012

Accounts Receivable [Abstract]

Accounts Receivable

5.  Accounts Receivable

	September 30, 2012		December 31, 2011
Royalties	$	728	$	1,279
Collaborators		314		77
Research grants		87		100
Other		-		60
Total	$	1,129	$	1,516

The decrease in accounts receivable as of September 30, 2012 as compared to December 31, 2011, is primarily due to lower Relistor royalties from decreased net sales by Salix during the third quarter of 2012. Since December 31, 2011, we have collected all accounts receivable outstanding on that date.