v3.3.1.900

Note 16 - Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2014
Income Tax Disclosure [Abstract] |
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] |
|  | December 31, |  |  | December 31, |
|  | 2014 |  |  | 2013 |
Tax at federal statutory rate |  | $ | (740,000 | ) |  | $ | (967,000 | )
State taxes, net of federal benefit |  |  | (117,000 | ) |  |  | (160,000 | )
Research and development credits |  |  | — |  |  |  | (12,000 | )
Fair market value of warrants & derivatives |  |  | 17,000 |  |  |  | (22,000 | )
Stock-based compensation |  |  | 51,000 |  |  |  | 29,000 |
Other permanent items |  |  | 10,000 |  |  |  | 1,000 |
Valuation allowance |  |  | 779,000 |  |  |  | 1,131,000 |
Income tax provision |  | $ | — |  |  | $ | — |
Schedule of Deferred Tax Assets and Liabilities [Table Text Block] |
|  | December 31, |  |  | December 31, |
|  | 2014 |  |  | 2013 |
Deferred tax assets: |  |  |  |  |  |  |  |
Net operating loss and credit carryforwards |  | $ | 30,227,000 |  |  | $ | 29,431,000 |
Stock-based compensation |  |  | 1,199,000 |  |  |  | 1,193,000 |
Stock-based compensation |  |  | 422,000 |  |  |  | 558,000 |
Basis difference for fixed assets and intangibles |  |  | 158,000 |  |  |  | 174,000 |
Total gross deferred tax assets |  |  | 32,006,000 |  |  |  | 31,356,000 |
Valuation allowance |  |  | (32,006,000 | ) |  |  | (31,356,000 | )
Net deferred tax assets |  | $ | — |  |  | $ | — |
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] |
|  | 2014 |  |  | 2013 |
Balance, beginning of year |  | $ | 147,000 |  |  | $ | 140,000 |
Additions based on tax positions related to the current year |  |  | — |  |  |  | — |
Additions for tax positions related to prior years |  |  | — |  |  |  | 7,000 |
Reductions for tax positions related to prior years |  |  | — |  |  |  | — |
Balance, end of year |  | $ | 147,000 |  |  | $ | 147,000 |

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- Definition 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=6907707&loc=d3e32537-109319 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 + Details
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