Note 13 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	December 31,
	2016			2015
Deferred tax asset:
Net operating loss	$	2,206		$	2,233
Reserves and allowances		295			225
Tax Credit carryforward		153			153
Property and equipment		194			142
Total deferred tax asset		2,848			2,753
Valuation allowance		(2,848	)		(2,753	)
Deferred tax asset, net	$	—		$	—

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	December 31,
	2016			2015
Current
Foreign	$	(20	)	$	(1	)
Federal		—			—
State		—			—
Income tax (benefit)	$	(20	)	$	(1	)

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	Year Ended December 31,
	2016			2015
Tax benefit at U.S. Federal statutory tax rate		(34.0%	)		(34.0%	)
Increase (decrease) in tax rate resulting from:
Stock compensation expense		12.1	%		—
Taxes in respect of prior years		9.1	%		0.2	%
Increase in valuation allowance		8.3	%		28.0	%
Nondeductible meals & entertainment expense and other		4.4	%		7.2	%
State taxes, net of federal benefit		0.3	%		—
Foreign rate differential		(0.2%	)		(1.5%	)
Foreign R&D credit		(1.7%	)		—
Effective tax rate		(1.7%	)		(0.1%	)