Finacial Statement Schedule Allowance For Uncollectible Accounts (Tables)

12 Months Ended

Dec. 31, 2011

Valuation and Qualifying Accounts Disclosure [Line Items]

Schedule of Valuation Allowance for Impairment of Recognized Servicing Assets [Table Text Block]

Description	Balance at Beginning of Year			Additions Charged to Costs and Expenses (a)			Deduction (b)		Balance at End of Year
ALLOWANCE FOR UNCOLLECTIBLE ACCOUNTS:
2009	$	(505	)	$	(214	)	$	178	$	(541	)
2010	(541		)	(193		)	141		(593		)
2011	(593		)	(12		)	141		(464		)

(a) We record a bad debt provision based upon historical experience and a review of individual customer balances.

(b) When an individual customer balance becomes impaired and is deemed uncollectible a deduction is made against the allowance for uncollectible accounts.

Years Ended December 31, 2011, 2010 and 2009

(In thousands)

Description	Balance at Beginning of Year	Additions Charged to Costs and Expenses (c)		Deduction	Balance at End of Year
TAX VALUATION ALLOWANCE:
2009	—	—		—	—
2010	—	—		—	—
2011	—	(361	)	—	(361	)

(c) We record a valuation allowance against a deferred tax asset when it is determined that it is more likely than not that the deferred tax asset will not be realized.