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Note 10 - Options: Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions (Tables)
 12 Months Ended
Dec. 31, 2018
Tables/Schedules  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

 

 

 

Years ended December 31,

 

 

2018

 

 

2017

 

 

2016

Expected dividend amount per quarter

$

0.2875

 

$

-

 

$

0.2775

Expected stock price volatility

 

27.5%

 

 

-

 

 

28.0%

Risk-free interest rate

 

2.57%

 

 

-

 

 

1.30%

Expected life of options

 

4.9 years

 

 

-

 

 

4.7 years