Note 9 - Revenue (Tables)

3 Months Ended

Mar. 31, 2019

Notes Tables

Disaggregation of Revenue [Table Text Block]

	Three Months Ended March 31,
(I n thousands)	2019		2018
Net product sales:
Regenerative medicine	$	2,179	$	2,104
Drug discovery		238		377
BioBanking		249		295
Distributors		3,104		1,039
Total revenues	$	5,770	$	3,815