XML 13 R48.htm IDEA: XBRL DOCUMENT v3.2.0.727
Stock Plans And Stock Based Compensation: Schedule of Fair Value Assumptions (Details) - Stock Options - $ / shares
9 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected volatility 29.00% 39.00%
Expected term (in years) 5 years 5 years
Expected dividend yield 3.22% 2.51%
Risk free interest rate 1.43% 1.41%
Grant date fair value per share (in dollars per share): $ 1.97 $ 2.59