|
Note 4 - Property and Equipment (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Property, Plant and Equipment [Abstract] | |||
| Depreciation, Depletion and Amortization | $ 512 | $ 489 | $ 520 |