TRADE RECEIVABLES (Tables)

9 Months Ended

Sep. 30, 2013

TRADE RECEIVABLES [Abstract]

Trade Receivables

Trade receivables, net, consisted of the following:

	September 30, 2013			December 31, 2012
	(thousands of dollars)
Trade receivables	$	20,530		$	16,012
Less allowance for doubtful accounts		(210	)		(210	)
Trade receivables, net	$	20,320		$	15,802