Quarterly report pursuant to sections 13 or 15(d)

Income Taxes (Details)

v2.4.0.6
Income Taxes (Details) (USD $)
In Thousands, unless otherwise specified
6 Months Ended 12 Months Ended 0 Months Ended 6 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Sep. 30, 2012
Internal Revenue Service (IRS) [Member]
Sep. 30, 2012
Internal Revenue Service (IRS) [Member]
Minimum [Member]
Sep. 30, 2012
Internal Revenue Service (IRS) [Member]
Maximum [Member]
Oct. 09, 2012
State and Local Jurisdiction [Member]
Mar. 31, 2013
State and Local Jurisdiction [Member]
Sep. 30, 2012
State and Local Jurisdiction [Member]
Income taxes [Abstract]                
Effective tax rate 39.00% 38.10%            
Income Tax Examination [Line Items]                
Years under examination       2005 2007      
Cash paid for income taxes $ 1,168 $ 2,915 $ 613     $ 318    
Interest paid on tax settlement     225     5 135  
Penalties and interest due               $ 149