Note 22 - Litigation Settlement Income

12 Months Ended

Dec. 31, 2018

Notes to Financial Statements

Settlement Income [Text Block]

22.

Litigation settlement income

In

December 2017,

as part the settlement of the Company’s patent infringement action, the Company received a

one

-time, lump sum payment of

$27.5

million from Qiagen. The income from the settlement was recorded as a separate item in the other income (expense) section of the Company’s consolidated statement of operations. See “Legal Proceedings” for more information.