SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS

12 Months Ended

Dec. 31, 2011

SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS [Abstract]

SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS

SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS

	Balance at Beginning of Period		Charged to Costs and Expenses		Deductions				Balance at the End of Period
Year ended December 31, 2011
Allowance for Doubtful Accounts	$	1,592,000	$	3,916,000	$	3,563,000	(1)	$	1,945,000
Year ended December 31, 2010
Allowance for Doubtful Accounts	$	529,000	$	2,050,000	$	987,000	(1)	$	1,592,000
Year ended December 31, 2009
Allowance for Doubtful Accounts	$	362,000	$	640,000	$	473,000	(1)	$	529,000

(1) Uncollectible accounts written off, net of recoveries.