Note 10 - Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Schedule of Accrued Liabilities [Table Text Block]

	December 31, 2020		December 31, 2019
Compensation and related expenses	$	7,345	$	5,830
Professional fees		3,438		3,850
Operating lease liability - current		1,437		1,141
Clinical trial costs		1,429		788
Finance lease liability - current		148		-
Other		996		836
Total	$	14,793	$	12,445