Other Income, Net (Tables)

12 Months Ended

Dec. 31, 2012

Other Income, Net [Abstract]

Other Income, Net

Other income, net for the years ended Dec. 31 consisted of the following:

(Thousands of Dollars)	2012			2011			2010
Interest income	$	736		$	324		$	1,190
Other nonoperating income		129			67			459
Insurance policy expense		(389	)		(283	)		(384	)
Other nonoperating expense		-			(10	)		-
Other income, net	$	476		$	98		$	1,265