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Stock-Based Compensation (Schedule of Qualified Stock Option Activity) (Details) - Jun. 30, 2015 - Qualified Stock Options - shares
Total
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]  
Outstanding at beginning of year 301,800
Granted 24,500
Exercised (72,375)
Canceled (1,500)
Outstanding at June 30, 2015 252,425
Exercisable at June 30, 2015 144,325
Available for grant at June 30, 2015 375,500