Note 5 - Nonvested Shares (Details) - $ / shares |
12 Months Ended | |
|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Non-vested options January 1, 2015 (in shares) | 71,800 | |
| Non-vested options January 1, 2015 (in dollars per share) | $ 2.85 | |
| Granted (in shares) | 12,000 | 71,800 |
| Granted (in dollars per share) | $ 2.84 | |
| Vested (in shares) | (35,133) | |
| Vested (in dollars per share) | $ 2.81 | |
| Non-vested options at December 31, 2015 (in shares) | 48,667 | 71,800 |
| Non-vested options at December 31, 2015 (in dollars per share) | $ 2.87 | $ 2.85 |
| X | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. No definition available.
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| X | ||||||||||
- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Number of non-vested options outstanding. No definition available.
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| X | ||||||||||
- Definition Weighted average grant-date fair value of non-vested options outstanding. No definition available.
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| X | ||||||||||
- Definition Number of options vested. No definition available.
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| X | ||||||||||
- Definition Weighted average grant-date fair value of options vested. No definition available.
|