EARNINGS PER SHARE (Tables)

6 Months Ended

Jun. 30, 2013

Earnings Per Share [Abstract]

Components of Basic and Diluted Earnings Per Share

The components of basic and diluted earnings per share for the quarter and six months ended June 30, 2013 and 2012 are as follows:

	Quarter Ended				Six Months Ended
	June 30,				June 30,
	2013		2012		2013		2012
	(Thousands of dollars)
Weighted average outstanding shares of common stock, basic		15,474		15,312		15,474		15,312
Dilutive effect of restricted stock units		200		238		199		174
Weighted average outstanding shares of common stock, diluted		15,674		15,550		15,673		15,486