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, 2016	Dec. 31, 2015
Fair Value, Measurements, Recurring
Equity, Fair Value Disclosure	$ 64	$ 55
Fair Value, Inputs, Level 1
Equity, Fair Value Disclosure	$ 64	$ 55