CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
NET SALES	$ 277,682	$ 221,984
COST OF SALES	257,953	205,483
Gross profit	19,729	16,501
GENERAL AND ADMINISTRATIVE EXPENSES	9,106	9,513
SELLING EXPENSES	3,496	2,979
ACQUISITION EXPENSES	1,678
Income from operations	5,449	4,009
OTHER INCOME (EXPENSE):
Interest expense	(733)	(926)
Other, net	(4)	156
Income before income taxes	4,712	3,239
INCOME TAX (BENEFIT) EXPENSE	(352)	42
Net income	5,064	3,197
BASIC AND DILUTED NET INCOME PER SHARE	$ 0.07	$ 0.05
NET COMPREHENSIVE INCOME	$ 5,064	$ 3,197