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Schedule II
 12 Months Ended
Sep. 30, 2012
Valuation and Qualifying Accounts [Abstract]  
Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]
Year Ended September 30,
Balance at
beginning
of period
 
Charged
to costs
and
expenses
 
Other
Additions
 
Deductions
(write-offs)
 
Balance
at end
of
period
Allowance for doubtful accounts
 
 
 
 
 
 
 
 
 
2012
$
—

 
$
—

 
$
—

 
$
—

 
$
—

2011
0.1

 
—

 
—

 
(0.1
)
 
—

2010
0.1

 
—

 
—

 
—

 
0.1