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Schedule II
 12 Months Ended
Dec. 31, 2013
Schedule II [Abstract]  
Schedule II [Text Block]
Schedule II

ALLETE

Valuation and Qualifying Accounts and Reserves
 
Balance at
Beginning of
Period
Additions
Deductions
from
Reserves (a)
Balance at
End of
Period
 
Charged to
Income
Other
Charges
Millions
 
 
 
 
 
Reserve Deducted from Related Assets
 
 
 
 
 
Reserve For Uncollectible Accounts
 
 
 
 
 
2011 Trade Accounts Receivable

$0.9


$1.3

—


$1.3


$0.9

Finance Receivables – Long-Term

$0.8


$0.1

—


$0.3


$0.6

2012 Trade Accounts Receivable

$0.9


$1.0

—


$0.9


$1.0

Finance Receivables – Long-Term

$0.6

—

—

—


$0.6

2013 Trade Accounts Receivable

$1.0

1.3

—

1.2


$1.1

Finance Receivables – Long-Term

$0.6

—

—

—


$0.6

Deferred Asset Valuation Allowance
 
 
 
 
 
2011 Deferred Tax Assets

$0.5

$(0.1)
—

—


$0.4

2012 Deferred Tax Assets

$0.4

$2.0
—

—


$2.4

2013 Deferred Tax Assets

$2.4


$5.6

—

—


$8.0

(a)
Includes uncollectible accounts written off.