Note 9 - Options: Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range (Tables)

12 Months Ended

Dec. 31, 2016

Tables/Schedules

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range

				Options Outstanding				Options Exercisable
	Range of Exercise Prices			Number Outstanding	Weighted Average Remaining Contractual Life (Years)		Weighted Average Exercise Price	Number Exercisable		Weighted Average Exercise Price
$	24.00	-	33.30	20,936	3.40	$	27.50	20,936	$	27.50
	49.18	-	58.50	53,736	8.66		54.07	15,359		49.24
$	24.00	-	58.50	74,672	7.18	$	46.62	36,295	$	36.70