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Note 10 - Stock-based Compensation Plans and Warrants (Tables) | 12 Months Ended
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Dec. 31, 2015
Notes Tables |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
Risk-free interest rate |  |  | 3.90 | %
Expected life (years) |  |  | 9.4 |
Expected volatility |  |  | 52 | %
Expected dividend yield |  |  | 0.0 | %
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] |
|  |  |  |  |  | Weighted- |  |  | Average |  |  | Aggregate |
|  |  |  |  |  | Average |  |  | Remaining |  |  | Intrinsic |
|  |  |  |  |  | Exercise |  |  | Contractual |  |  | Value |
Options |  | Shares |  |  | Price |  |  | Term |  |  | ($000’s) |
Outstanding January 1, 2015 |  |  | 822,500 |  |  | $ | 11.82 |  |  |  | 3.4 |  |  | $ | 7,181 |
Granted |  |  | - |  |  | $ | - |  |  |  | - |  |  |  | - |
Exercised |  |  | - |  |  | $ | - |  |  |  | - |  |  |  | - |
Forfeited or expired |  |  | (315,000 | ) |  | $ | 12.09 |  |  |  | - |  |  |  | 3,247 |
Outstanding at December 31, 2015 |  |  | 507,500 |  |  | $ | 11.66 |  |  |  | 4.3 |  |  |  | 3,934 |
Exercisable at December 31, 2015 |  |  | 507,500 |  |  | $ | 11.66 |  |  |  | 4.3 |  |  | $ | 3,934 |
Schedule of Other Share-based Compensation, Activity [Table Text Block] |
|  |  |  |  |  | Weighted- |
|  |  |  |  |  | Average |
|  | Amount |  |  | Exercise Price |
Outstanding at January 1, 2013 |  |  | 862,500 |  |  | $ | 11.92 |
Granted |  |  | - |  |  | $ | - |
Expired or canceled |  |  | (20,000 | ) |  | $ | 15.25 |
Exercised |  |  | - |  |  | $ | - |
Outstanding at December 31, 2013 |  |  | 842,500 |  |  | $ | 11.84 |
Granted |  |  | - |  |  | $ | - |
Expired or canceled |  |  | (20,000 | ) |  | $ | 12.60 |
Exercised |  |  | - |  |  | $ | - |
Outstanding at December 31, 2014 |  |  | 822,500 |  |  | $ | 11.82 |
Granted |  |  | - |  |  | $ | - |
Expired or canceled |  |  | (315,000 | ) |  | $ | 12.09 |
Exercised |  |  | - |  |  | $ | - |
Outstanding at December 31, 2015 |  |  | 507,500 | (a) |  | $ | 11.66 |
Options exercisable at December 31, 2015 |  |  | 507,500 |  |  | $ | 11.66 |
Weighted-average years of remaining contractual life of options outstanding at December 31, 2015 |  |  | 4.3 |  |  |  |  |
Schedule of Nonvested Share Activity [Table Text Block] |
|  |  |  |  |  | Weighted- |
|  |  |  |  |  | Average |
|  |  |  |  |  | Grant-date |
|  | Shares |  |  | Fair Value |
Nonvested at December 31, 2013 |  |  | 19,483 |  |  | $ | 4.60 |
Granted |  |  | 206,858 |  |  | $ | 8.69 |
Forfeited or canceled |  |  | - |  |  | $ | - |
Vested |  |  | (81,827 | ) |  | $ | 8.07 |
Nonvested at December 31, 2014 |  |  | 144,514 |  |  | $ | 8.50 |
Granted |  |  | 87,945 |  |  | $ | 6.37 |
Forfeited or canceled |  |  | - |  |  | $ | - |
Vested |  |  | (155,609 | ) |  | $ | 7.27 |
Nonvested at December 31, 2015 |  |  | 76,850 |  |  | $ | 8.54 |

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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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