Note 5 - Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

Schedule of Accrued Liabilities [Table Text Block]

	December 31,
	201 7		201 6
Payroll, bonus, and benefits	$	1,204	$	317
Legal and consulting		550		167
Stock-based compensation		71		171
Litigation settlement		-		3,000
Other accrued expenses		456		298
	$	2,281	$	3,953