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Note 9 - Share Based Payments (Tables) | 12 Months Ended
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Dec. 31, 2017
Notes Tables |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value [Table Text Block] |
|  | Black-Scholes-Merton |
Volatility |  |  | 173 | %
Expected life of options (in years) |  |  | 5 |
Risk-free interest rate |  |  | 1.93 | %
Dividend yield |  |  | 0 | %
Share-based Compensation, Stock Options, Activity [Table Text Block] |
|  |  |  |  |  |  |  |  |  | Weighted Average |  |  |  |  |
|  | Number |  |  | Weighted |  |  | Remaining |  |  | Aggregate |
|  | Of |  |  | Average |  |  | Contractual |  |  | Intrinsic |
|  | Shares |  |  | Exercise Price |  |  | Life (years) |  |  | Value* |
Shares under option, January 1, 2016 |  |  | 2,405,000 |  |  | $ | 0.48 |  |  |  | - |  |  | $ | - |
Options granted |  |  | 60,000 |  |  | $ | 0.10 |  |  |  |  |  |  |  |  |
Options exercised |  |  | - |  |  | $ | - |  |  |  |  |  |  |  |  |
Options cancelled and expired |  |  | (245,000 | ) |  | $ | (0.41 | ) |  |  |  |  |  |  |  |
Shares under option, December 31, 2016 |  |  | 2,220,000 |  |  | $ | 0.48 |  |  |  | 6.15 |  |  |  |  |
Options granted |  |  | 2,557,000 |  |  | $ | 0.10 |  |  |  |  |  |  |  |  |
Options exercised |  |  | - |  |  | $ | - |  |  |  |  |  |  |  |  |
Options cancelled and expired |  |  | (2,316,000 | ) |  | $ | (0.41 | ) |  |  |  |  |  |  |  |
Shares under option, December 31, 2017 |  |  | 2,461,000 |  |  | $ | 0.15 |  |  |  | 9.27 |  |  | $ | 687 |
Schedule of Nonvested Share Activity [Table Text Block] |
|  |  |  |  |  | Weighted |
|  | Number of |  |  | Average |
|  | Shares |  |  | Fair Value |
Non-vested stock options at January 1, 201 6 |  |  | 1,685,000 |  |  | $ | 0.36 |
Options granted |  |  | 60,000 |  |  | $ | 0.13 |
Vested during period |  |  | (200,000 | ) |  | $ | (0.52 | )
Options cancelled |  |  | (205,000 | ) |  | $ | (0.30 | )
Non-vested shares under option, December 31, 201 6 |  |  | 1,340,000 |  |  | $ | 0.34 |
Options granted |  |  | 2,557,000 |  |  | $ | 0.13 |
Vested during period |  |  | - |  |  | $ | - |
Options cancelled |  |  | (1,760,000 | ) |  | $ | (0.29 | )
Non-vested shares under option, December 31, 201 7 |  |  | 2,137,000 |  |  | $ | 0.13 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Table Text Block] |
|  |  |  |  |  | Weighted Average |  |  | Weighted |  |  |  |  |
|  |  |  |  |  | Remaining |  |  | Average |  |  | Aggregate |
|  |  |  |  |  | Contractual |  |  | Exercise |  |  | Intrinsic |
|  | Options |  |  | Life (years) |  |  | Price |  |  | Value |
Stock options exercisable |  |  | 324,000 |  |  |  | 4.62 |  |  | $ | 0.47 |  |  | $ | 3 |
Stock options expected to vest |  |  | 2,137,000 |  |  |  | 9.27 |  |  | $ | 0.10 |  |  | $ | 684- |
Options exercisable and expected to vest |  |  | 2,461,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block] |
|  |  |  |  |  | Weighted Average |
|  | Number of |  |  | Grant Date |
|  | Shares |  |  | Fair Value |
Unvested January 1, 201 6 |  |  | 720,000 |  |  | $ | 0.55 |
Granted restricted stock |  |  | 84,000 |  |  | $ | 0.08 |
Cancelled restricted stock |  |  | (80,000 | ) |  |  | (0.37 | )
Vested restricted stock |  |  | (475,000 | ) |  | $ | (0.52 | )
Unvested December 31, 201 6 |  |  | 249,000 |  |  | $ | 0.45 |
Granted restricted stock |  |  | - |  |  | $ | - |
Cancelled restricted stock |  |  | (54,000 | ) |  |  | (0.08 | )
Vested restricted stock |  |  | (165,000 | ) |  | $ | (0.62 | )
Unvested December 31, 201 7 |  |  | 30,000 |  |  | $ | 0.15 |

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of number, weighted-average exercise price or conversion ratio, aggregate intrinsic value, and weighted-average remaining contractual term for outstanding and exercisable options that are fully vested and expected to vest. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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