Other Income, Net

12 Months Ended

Dec. 31, 2012

Other Income, Net [Abstract]

Other Income, Net

8.  Other Income, Net

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

(Thousands of Dollars)	2012			2011			2010
Interest income	$	379		$	506		$	250
Other nonoperating income		36			11			57
Insurance policy expense		(369	)		(111	)		(280	)
Other income, net	$	46		$	406		$	27