Note 5 - Stock-based Compensation Recognized (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
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| Employee Stock Option [Member] | ||
| Allocated Share-based Compensation Expense | $ 53,000 | $ 14,000 |
| Allocated stock-based compensation | (53,000) | (14,000) |
| Director Stock Options [Member] | ||
| Allocated Share-based Compensation Expense | 39,000 | 48,000 |
| Allocated stock-based compensation | (39,000) | (48,000) |
| Allocated Share-based Compensation Expense | 92,000 | 34,000 |
| Allocated stock-based compensation | $ (92,000) | $ (34,000) |
| X | ||||||||||
- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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