Note 11 - Accrued Expenses (Tables)

9 Months Ended

Sep. 30, 2016

Notes Tables

Schedule of Accrued Liabilities [Table Text Block]

	September 30, 2016		December 31, 2015
Compensation and related expenses	$	2,647	$	3,082
Facility construction costs		336		415
Research grants		488		381
Professional fees		851		210
Clinical trial costs		333		252
Other		768		438
Total	$	5,423	$	4,778