Note 11 - Accrued Expenses (Tables)

9 Months Ended

Sep. 30, 2019

Notes Tables

Schedule of Accrued Liabilities [Table Text Block]

	September 30,		December 31,
	2019		2018
Compensation and related expenses	$	4,039	$	4,446
Professional fees		1,333		1,989
Operating lease liability - current		1,109		-
Income taxes payable		766		385
Research grants		381		400
Clinical trial costs		497		577
Other		368		349
Total	$	8,493	$	8,146