Note 4 - Fair Value Measurements and Financial Instruments: Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Thousands |
Dec. 31, 2015 |
Dec. 31, 2014 |
|---|---|---|
| Fair Value, Measurements, Recurring | ||
| Equity, Fair Value Disclosure | $ 55 | $ 58 |
| Fair Value, Inputs, Level 1 | ||
| Equity, Fair Value Disclosure | $ 55 | $ 58 |