XML 70 R54.htm IDEA: XBRL DOCUMENT v3.3.1.900
Equity - Options (Details) - Stock options - USD ($)
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Stock Options    
Vesting period 3 years  
Fair value assumptions    
Expected life 3 years  
Volatility rate (as a percent) 0.21%  
Risk free interest rate (as a percent) 0.66%  
Expected dividend yield (as a percent) 5.31%  
Fair value of option (in dollars per share) $ 2.96  
Nonqualified stock option activity    
Outstanding at the beginning of the year (in shares) 43,334 73,334
Granted (in shares)   15,000
Exercised (in shares) (3,333) (45,000)
Outstanding at the end of the year (in shares) 40,001 43,334
Options exercisable at end of the period (in shares) 30,001 28,334
Weighted Average Price    
Outstanding at the beginning of the year (in dollars per share) $ 29.16 $ 23.97
Granted (in dollars per share)   38.43
Exercised (in dollars per share) 23.79 23.79
Outstanding at the end of the year (in dollars per share) 29.60 29.16
Exercisable at the end of the period (in dollars per share) $ 31.99 $ 24.25
Other information    
Aggregate intrinsic value of exercisable options at the end of the year $ 494,000  
Weighted average remaining contractual life of options exercisable 2 years 7 months 6 days 2 years 8 months 12 days
Value of options exercised $ 79,000 $ 1,071,000
Market value of options on the date of exercise 140,000 1,840,000
Compensation expense, vested awards $ 14,000 $ 12,000
Options scheduled to vest (in shares) 10,000  
Remaining compensation expense $ 18,000  
2016    
Other information    
Options scheduled to vest (in shares) 5,000  
Remaining compensation expense $ 15,000  
2017    
Other information    
Options scheduled to vest (in shares) 5,000  
Remaining compensation expense $ 3,000