Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2016

Financial Instruments [Abstract]

Summary Of Financial Instruments Measured At Fair Value

March 31, 2016	Level 1		Level 2		Level 3		Total
Cash equivalents:
Money market funds	$	714	$	--	$	--	$	714
Restricted securities:
Money market funds		812		--		--		812
Total assets	$	1,526	$	--	$	--	$	1,526

December 31, 2015	Level 1		Level 2		Level 3		Total
Cash equivalents:
Money market funds	$	549	$	--	$	--	$	549
Restricted securities:
Money market funds		830		--		--		830
Total assets	$	1,379	$	--	$	--	$	1,379