SELECTED QUARTERLY FINANCIAL DATA

12 Months Ended

Dec. 31, 2012

Selected Quarterly Financial Information [Abstract]

SELECTED QUARTERLY FINANCIAL DATA

NOTE 24 SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)

Selected quarterly financial data for the years ended December 31, 2012, 2011 and 2010 are presented in the following table:

	Three Months Ended,
Year ended December 31, 2012	December 31,			September 30,			June 30,			March 31,
Revenue	$	254,879,358		$	238,793,030		$	191,007,886		$	169,086,267
Cost of goods sold		(229,933,412	)		(213,536,628	)		(170,296,852	)		(150,451,275	)
Gross profit		24,945,946			25,256,402			20,711,034			18,634,992
Selling expenses		(786,331	)		(741,135	)		(740,988	)		(686,006	)
General and administrative expenses		(2,630,168	)		(2,059,027	)		(1,834,465	)		(2,097,834	)
Income from operations		21,529,447			22,456,240			18,135,581			15,851,152
Net income		15,793,687			17,226,638			13,446,666			11,475,012
Earnings per share
Basic	$	0.52		$	0.58		$	0.45		$	0.39
Diluted	$	0.52		$	0.58		$	0.45		$	0.38

	Three Months Ended
Year ended December 31, 2011	December 31,			September 30,			June 30,			March 31,
Revenue	$	177,579,159		$	155,570,657		$	167,012,527		$	136,931,096
Cost of goods sold		(157,877,953	)		(136,113,727	)		(147,365,064	)		(120,023,023	)
Gross profit		19,701,206			19,456,930			19,647,463			16,908,073
Selling expenses		(660,992	)		(633,584	)		(668,366	)		(523,036	)
General and administrative expenses		(2,239,462	)		(1,498,306	)		(1,339,062	)		(1,573,312	)
Income from operations		16,800,752			17,325,040			17,640,035			14,811,725
Net income		12,727,388			13,528,083			14,366,076			12,511,986
Earnings per share
Basic	$	0.43		$	0.45		$	0.48		$	0.42
Diluted	$	0.43		$	0.45		$	0.48		$	0.41

	Three Months Ended,
Year ended December 31, 2010	December 31,			September 30,			June 30,			March 31,
Revenue	$	135,471,182		$	96,337,451		$	75,502,350		$	63,220,702
Cost of goods sold		(114,812,441	)		(81,215,627	)		(61,002,044	)		(51,399,418	)
Gross profit		20,658,741			15,121,824			14,500,306			11,821,284
Selling expenses		(614,817	)		(422,209	)		(570,420	)		(450,877	)
General and administrative expenses		(1,776,457	)		(1,192,225	)		(1,484,893	)		(1,293,603	)
Income from operations		18,267,467			13,507,390			12,444,993			10,076,804
Net income		9,855,420			9,855,705			9,898,292			8,856,558
Earnings per share
Basic	$	0.34		$	0.34		$	0.35		$	0.35
Diluted	$	0.33		$	0.33		$	0.34		$	0.34