Note 5 - Accounts Receivable

6 Months Ended

Jun. 30, 2018

Notes to Financial Statements

Loans, Notes, Trade and Other Receivables Disclosure [Text Block]

Note

5

. Accounts Receivable

Our accounts receivable represent amounts due to us from royalties, collaborators, and sales of research reagents, and consisted of the following at

June 30, 2018

and

December 31, 2017 (

in thousands):

	June 30,		December 31,
	2018		2017
Royalties	$	3,530	$	3,683
Collaborators		4		13
Other		309		276
Accounts receivable, net	$	3,843	$	3,972