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Note 13 - Shareholders Equity (Tables) | 12 Months Ended
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Dec. 31, 2013
Note 13 - Shareholders Equity (Tables) [Line Items] |
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block] |
Description of Warrants |  | Original Exercise Price |  |  | Exercise Price at December 31, 2013 |  |  | Exercise Price at December 31, 2012 |
2012 Private Placement |  | $ | 0.54 |  |  | $ | 0.43 |  |  | $ | 0.54 |
2009 Strategic Alliance |  |  | 0.65 |  |  |  | 0.40 |  |  |  | 0.49 |
2008 Private Placement |  |  | 3.08 |  |  |  | n/a |  |  |  | 1.97 |
Schedule of Share-based Compensation, Activity [Table Text Block] |
|  | Warrants Outstanding |  |  | Weighted Average Exercise Price During the Period |
Balance, December 31, 2010 |  |  | 3,291,378 |  |  | $ | 1.42 |
Warrants issued |  |  | 125,000 |  |  |  | 0.01 |
Warrants exercised |  |  | (160,000 | ) |  |  | 0.01 |
Balance, December 31, 2011 |  |  | 3,256,378 |  |  |  | 1.43 |
Warrants issued |  |  | 9,800,000 |  |  |  | 0.54 |
Balance, December 31, 2012 |  |  | 13,056,378 |  |  |  | 0.76 |
Warrants issued |  |  | 25,494 |  |  |  | 0.35 |
Warrants expired |  |  | (2,006,378 | ) |  |  | 1.97 |
Balance, December 31, 2013 |  |  | 11,075,494 |  |  | $ | 0.44 |
Exercisable, December 31, 2013 |  |  | 11,075,494 |  |  | $ | 0.44 |
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] |
|  | 2013 |  |  | 2012 |  |  | 2011 |
Cost of sales |  | $ | 5 |  |  | $ | - |  |  | $ | - |
Research and development |  |  | 28 |  |  |  | 27 |  |  |  | 37 |
Sales and marketing |  |  | 32 |  |  |  | 27 |  |  |  | 141 |
General and administrative |  |  | 136 |  |  |  | 146 |  |  |  | 248 |
Total stock-based compensation |  | $ | 201 |  |  | $ | 200 |  |  | $ | 426 |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|  | 2013 |  |  | 2012 |  |  | 2011 |
Expected life of option (years) |  |  | 7.0 |  |  |  | 5.6 |  |  |  | 6.1 |
Risk-free interest rate |  |  | 1.36 | % |  |  | 0.82 | % |  |  | 2.36 | %
Expected volatility |  |  | 92.00 | % |  |  | 59.00 | % |  |  | 56.35 | %
Dividend yield |  |  | 0 | % |  |  | 0 | % |  |  | 0 | %
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] |
|  | Number of Options |  |  | Weighted Average Exercise Price Per Share |
Outstanding at December 31, 2010 |  |  | 1,877,417 |  |  | $ | 3.36 |
Granted |  |  | 1,040,000 |  |  |  | 0.84 |
Cancelled |  |  | (591,419 | ) |  |  | 2.99 |
Exercised |  |  | (7,500 | ) |  |  | 0.60 |
Outstanding at December 31, 2011 |  |  | 2,318,498 |  |  |  | 2.28 |
Granted |  |  | 120,000 |  |  |  | 0.27 |
Cancelled |  |  | (253,915 | ) |  |  | 2.22 |
Exercised |  |  | - |  |  |  | - |
Outstanding at December 31, 2012 |  |  | 2,184,583 |  |  |  | 2.20 |
Granted |  |  | 2,079,500 |  |  |  | 0.31 |
Cancelled |  |  | (1,382,190 | ) |  |  | 0.77 |
Exercised |  |  | (20,000 | ) |  |  | 0.52 |
Outstanding at December 31, 2013 |  |  | 2,861,893 |  |  | $ | 1.53 |
Vested and Expected to Vest at December 31, 2013 |  |  | 2,655,321 |  |  | $ | 1.24 |
Exercisable at December 31, 2013 |  |  | 1,914,697 |  |  | $ | 2.08 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Table Text Block] |
| OPTIONS OUTSTANDING |  |  | OPTIONS EXERCISABLE |
| Range of Exercise Prices |  |  | Number of Shares Outstanding |  |  | Weighted Average Remaining Contractual Life |  |  | Weighted Average Exercise Price |  |  | Number Exercisable |  |  | Weighted Average Exercise Price |
|  |  |  |  |  |  |  |  |  |  | (in years) |  |  |  |  |  |  |  |  |  |  |  |  |
| $ | 0.23 | - | $0.23 |  |  |  | 855,000 |  |  |  | 9.2 |  |  | $ | 0.23 |  |  |  | 398,332 |  |  | $ | 0.23 |
| $ | 0.26 | - | $0.76 |  |  |  | 772,394 |  |  |  | 8.5 |  |  |  | 0.52 |  |  |  | 350,932 |  |  |  | 0.54 |
| $ | 1.00 | - | $2.33 |  |  |  | 882,499 |  |  |  | 5.9 |  |  |  | 1.37 |  |  |  | 813,433 |  |  |  | 1.39 |
| $ | 4.91 | - | $6.36 |  |  |  | 160,000 |  |  |  | 3.5 |  |  |  | 6.03 |  |  |  | 160,000 |  |  |  | 6.03 |
| $ | 7.00 | - | $10.64 |  |  |  | 192,000 |  |  |  | 1.9 |  |  |  | 8.38 |  |  |  | 192,000 |  |  |  | 8.38 |
|  |  |  |  |  |  |  | 2,861,893 |  |  |  | 7.2 |  |  | $ | 1.53 |  |  |  | 1,914,697 |  |  |  | 2.08 |
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] |
|  | Restricted Stock Outstanding |  |  | Weighted Average Grant Date Fair Value |
At December 31, 2010 |  |  | 497,629 |  |  | $ | 0.73 |
Granted |  |  | 114,767 |  |  |  | 0.96 |
Vested |  |  | (197,721 | ) |  |  | 0.87 |
At December 31, 2011 |  |  | 414,675 |  |  |  | 0.73 |
Granted |  |  | - |  |  |  | - |
Vested |  |  | - |  |  |  | - |
At December 31, 2012 |  |  | 414,675 |  |  |  | 0.73 |
Granted |  |  | - |  |  |  | - |
Vested |  |  | (40,865 | ) |  |  | 0.73 |
At December 31, 2013 |  |  | 373,810 |  |  | $ | 0.73 |
Warrants or Rights Outstanding and Exercisable [Member] |
Note 13 - Shareholders Equity (Tables) [Line Items] |
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block] |
| WARRANTS OUTSTANDING |
| Exercise Price |  |  | Number of Shares Outstanding |  |  | Weighted Average Remaining Contactual Life |
|  |  |  |  |  |  |  |  | (in years) |
| $ | 0.01 |  |  |  | 300,000 |  |  |  | 1.7 |
| $ | 0.35 |  |  |  | 25,494 |  |  |  | 2.9 |
| $ | 0.40 |  |  |  | 600,000 |  |  |  | 1.0 |
| $ | 0.43 |  |  |  | 9,800,000 |  |  |  | 1.2 |
| $ | 1.20 |  |  |  | 350,000 |  |  |  | 1.2 |
|  |  |  |  |  | 11,075,494 |  |  |  | 1.2 |

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- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of share-based compensation plans that may be presented in a single table for outstanding, vested and expected to vest, and exercisable awards. The information that may be disclosed in this table may include, but is not limited to, number of shares, weighted average exercise price, weighted average remaining contractual life, and aggregate intrinsic value. + References No definition available. + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + 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 (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph i -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6784392&loc=d3e188667-122775 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 28 -Article 5 + Details
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- Definition Tabular disclosure of the number of fully vested share options (or share units) and share options expected to vest at the date of the latest statement of financial position, weighted-average exercise price (or conversion ratio), aggregate intrinsic value (except for nonpublic entities), and weighted-average remaining contractual term for both options (or share units) currently outstanding and options (or share units) exercisable (or convertible). + 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=6415400&loc=d3e5070-113901 + Details
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