Note 5 - Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Schedule of Accrued Liabilities [Table Text Block]

	As of December 31,
	2019		2018
Payroll and employee-related costs	$	4	$	1,390
Contracted service costs		9		968
Professional fees and other		307		279
Total	$	320	$	2,637