Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2011

Valuation and Qualifying Accounts [Abstract]

Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]

SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS

Years Ended December 31, 2011, 2010 and 2009

Column A	Column B		Column C				Column D			Column E
			Additions (Reductions)
Description	Balance at Beginning of Period		Additions to Bad Debt Expense or Deferred Tax Asset		Charged to Other Accounts (2)		Deductions(1),(2)			Balance at End of Period
	(In thousands)
Year ended December 31, 2011
Allowance for doubtful accounts	$	118	$	62	$	—	$	(19	)	$	161
Income tax valuation allowance	$	45,623	$	4,521	$	—	$	—		$	50,144
Year ended December 31, 2010
Allowance for doubtful accounts	$	97	$	39	$	—	$	(18	)	$	118
Income tax valuation allowance	$	47,990	$	—	$	15,106	$	(17,473	)	$	45,623
Year ended December 31, 2009
Allowance for doubtful accounts	$	72	$	103	$	—	$	(78	)	$	97
Income tax valuation allowance	$	47,565	$	425	$	—	$	—		$	47,990

(1) Deductions represent the actual write-off of accounts receivable balances.

(2) Represents recording of deferred tax liability that is charged to goodwill related to the Nellix acquisition and associated release of valuation allowance.