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Note 21: Stock Option Plan: Schedule of Fair Value Option Pricing Model Assumptions (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2012
Tables/Schedules |
Schedule of Fair Value Option Pricing Model Assumptions |
| December 31, | December 31, | December 31,
| 2012 | 2011 | 2010
Expected dividends per share | $0.72 | $0.72 | $0.72
Risk-free interest rate | 0.65% | 0.93% | 1.52%
Expected life of options | 5 years | 5 years | 5 years
Expected volatility | 28.83% | 27.99% | 37.69%
Weighted average fair value of |  |  |
options granted during year | $4.55 | $3.15 | $5.60

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