Note 5 - Accounts Receivable

3 Months Ended

Mar. 31, 2019

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, to a small extent, sales of research reagents, and consisted of the following at

March 31, 2019

and

December 31, 2018 (

in thousands):

	March 31,		December 31,
	2019		2018
Royalties	$	4,161	$	3,151
Other		774		652
Accounts receivable, net	$	4,935	$	3,803