Schedule II Valuation of Qualifying Accounts and Reserves

12 Months Ended

Dec. 31, 2011

Schedule II Valuation and Qualifying Accounts and Reserves [Abstract]

Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]

SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS AND RESERVES (In Thousands, Except Per Share Data)
Column A	Column B		Column C				Column D		Column E
			Charges To
	Balance At		Cost						Balance
	Beginning		And		Other				At End
Description	of Period		Expense		Accounts		Deductions		of Period
Allowance for doubtful accounts:
Year ended December 31, 2011	$	775	$	83	$	—	$	67	$	791
Year ended December 31, 2010	775		3		—		3		775
Year ended December 31, 2009	775		129		—		129		775
Year ended December 31, 2008	775		192		—		192		775