Cash Equivalents And Restricted Cash And Securities (Tables)

3 Months Ended

Mar. 31, 2013

Cash Equivalents And Restricted Cash And Securities [Abstract]

Summary Of Cash Equivalents And Marketable Securities

			Unrealized		Estimated
			Holding		Market
March 31, 2013	Cost Basis		Gains		Value
Cash equivalents:
Money market funds	$	716	$	--	$	716
Restricted cash and securities:
Cash		5,000		--		5,000
Money market funds		303		--		303
December 31, 2012
Cash equivalents:
Money market funds	$	1,319	$	--	$	1,319
Restricted cash and securities:
Cash		5,000		--		5,000
Money market funds		323		--		323