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Note 8 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

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

Year ended December 31, (in thousands)		2017				2016
Current		$	28			$	--
Total		$	28			$	--

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

Year ended December 31,		2017				2016
Statutory rate			35	%			35	%
Change in valuation allowance			(29	%)			(35	%)
Effective rate			6	%			0	%

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

(in thousands)		2017				2016
Deferred tax assets:
Federal, state and foreign loss carryforwards		$	794			$	1,440
Deferred revenue			11				30
Federal and state tax credits			757				642
Other			402				823
Total deferred tax asset			1,964				2,935
Less valuation allowance			(1,964	)			(2,935	)
Net deferred tax asset		$	--			$	--

Summary of Operating Loss Carryforwards [Table Text Block]

(in thousands)		2017				2016
2021		$	689			$	689
2022			849				849
2034			2,245				2,578
Total		$	3,783			$	4,116

X

- Definition

Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319

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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319

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+ References

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-Publisher FASB
-Name Accounting Standards Codification
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+ References

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