|
Note 3 - Fair Value Measurements (Details) (USD $)
|
12 Months Ended |
|
Dec. 31, 2014
|
| Note 3 - Fair Value Measurements (Details) [Line Items] |
|
| Fair Value Measurements Sensitivity Analysis Percentage |
10.00% |
| Maximum [Member] |
|
| Note 3 - Fair Value Measurements (Details) [Line Items] |
|
| Fair Value Measurements Sensitivity Analysis Amount 10 Percent Increase in Volatility |
64,000 |
| Minimum [Member] |
|
| Note 3 - Fair Value Measurements (Details) [Line Items] |
|
| Fair Value Measurements Sensitivity Analysis Amount 10 percent Decrease in Volatility |
(32,000) |