Note 7 - Accrued Expenses (Tables)

9 Months Ended

Sep. 30, 2019

Notes Tables

Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]

	September 30,		December 31,
	2019		2018
Accrued legal and professional fees	$	3,640	$	1,305
Accrued payroll and related costs		2,950		2,871
Accrued contract manufacturing costs		2,408		2,516
Accrued clinical trial costs		1,897		2,318
Accrued consulting costs		1,006		862
Other		560		661
Accrued expenses	$	12,461	$	10,533