Annual report pursuant to Section 13 and 15(d)

Stock Repurchase Program (Narrative) (Details)

v3.6.0.2
Stock Repurchase Program (Narrative) (Details) - shares
12 Months Ended
Sep. 30, 2016
Jan. 17, 2007
Equity, Class of Treasury Stock [Line Items]    
Number of shares authorized to be repurchased   1,000,000
Stock repurchased during period, shares 2,183,704  
Maximum repurchases allowed under provision through calendar year 450,000  
Maximum repurchases allowed under provision annually per individual 50,000  
Maximum [Member]    
Equity, Class of Treasury Stock [Line Items]    
Number of shares authorized to be repurchased 3,000,000