NET INCOME PER COMMON SHARE (Tables)

12 Months Ended

Dec. 31, 2012

NET INCOME PER COMMON SHARE [Abstract]

Net Income per Common Share

	Year ended December 31,
	2012		2011		2010
	(Restated - see Note 3)		(Restated - see Note 2)		(Restated - see Note 2)
	(thousands of dollars)
Net income	$	10,321	$	13,884	$	2,075
Basic earnings per common share:
Weighted average shares outstanding		24,081		23,993		23,769
Per share amount (dollars)	$	0.43	$	0.58	$	0.09
Diluted earnings per common share:
Weighted average shares outstanding		24,745		24,267		23,780
Per share amount (dollars)	$	0.42	$	0.57	$	0.09

Weighted average shares-denominator basic computation	24,081	23,993	23,769
Effect of dilutive stock options	664	274	11
Weighted average shares, as adjusted denominator diluted computation	24,745	24,267	23,780