XML 143 R128.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Note 21: Stock Option Plan: Schedule of Fair Value Option Pricing Model Assumptions (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2015
Tables/Schedules |
Schedule of Fair Value Option Pricing Model Assumptions |
| 2015 | 2014 | 2013
Expected dividends per share | $0.88 | $0.80 | $0.72
Risk-free interest rate | 1.66% | 1.40% | 1.53%
Expected life of options | 5 years | 5 years | 5 years
Expected volatility | 24.42% | 18.95% | 24.80%
Weighted average fair value of |  |  |
options granted during year | $9.59 | $4.20 | $5.22

X
- Definition Represents the textual narrative disclosure of Schedule of Fair Value Option Pricing Model Assumptions, during the indicated time period. + References No definition available. + Details
Name: | fil_ScheduleOfFairValueOptionPricingModelAssumptionsTextBlock
Namespace Prefix: | fil_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_TableTextBlockSupplementAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration