Note 2 - Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2013

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

	Fair Value Measurements on a Recurring Basis First Quarter-End 2013
Description	Total		Level 1		Level 2		Level 3
	(In millions of dollars)
Money market funds	$	2.7	$	2.7	$	-	$	-
Available-for-sale investment		52.2		52.2		-		-
Total assets at fair value	$	54.9	$	54.9	$	-	$	-

	Fair Value Measurements on a Recurring Basis As of Year-End 2012
Description	Total		Level 1		Level 2		Level 3
	(In millions of dollars)
Money market funds	$	2.3	$	2.3	$	-	$	-
Available-for-sale investment		37.7		37.7		-		-
Total assets at fair value	$	40.0	$	40.0	$	-	$	-