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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Tables)
 12 Months Ended
Dec. 31, 2012
SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS [Abstract]  
Valuation and Qualifying Accounts [Table Text Block]
 
 
 
 
Additions
 
 
 
 
 
 
Balance at
 
Charged to
 
Charged to
 
Other
 
Balance at
 
 
Beginning of
 
Costs and
 
Other
 
Additions
 
End of
 
 
Year
 
Expense
 
Accounts
 
(Deductions)
 
Year
Reserves and allowances deducted
 
 
 
 
 
 
 
 
 
 
from asset accounts:
 
 
 
 
 
 
 
 
 
 
Materials and supplies inventory allowances
 
 
 
 
 
 
 
 
 
 
Year Ended December 31, 2012
 
$
26

 
$
7

 
$
—

 
$
(6
)
a 
$
27

Year Ended December 31, 2011
 
26

 
4

 
—

 
(4
)
a 
26

Year Ended December 31, 2010
 
21

 
11

 
—

 
(6
)
a 
26

Valuation allowance for deferred tax assets
 
 
 
 
 
 
 
 
 
 
Year Ended December 31, 2012
 
$
2,393

 
$
49

 
$
1

 
$
—

 
$
2,443

Year Ended December 31, 2011
 
2,226

 
146

 
21

 
—

 
2,393

Year Ended December 31, 2010
 
2,157

 
55

 
14

 
—

 
2,226

 
 
 
 
 
 
 
 
 
 
 
Reserves for non-income taxes:
 
 
 
 
 
 
 
 
 
 
Year Ended December 31, 2012
 
$
73

 
$
21

 
$
(2
)
 
$
(12
)
b 
$
80

Year Ended December 31, 2011
 
73

 
12

 
(2
)
 
(10
)
b 
73

Year Ended December 31, 2010
 
47

 
29

 
—

 
(3
)
b 
73

a.
Primarily represents write-offs of obsolete materials and supplies inventories.
b.
Represents amounts paid or adjustments to reserves based on revised estimates.