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Condensed Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Condensed Consolidated Statements of Income [Abstract]
Net sales	$ 34,361	$ 33,026
Cost of sales	23,177	22,842
Gross profit	11,184	10,184
Selling and administrative	6,592	6,341
Acquisition expenses	1,095	0
Amortization	159	96
Income from operations	3,338	3,747
Other income (expense), net	131	(65)
Interest expense (including related party interest of $0 and $59, respectively)	(97)	(271)
Income before income taxes	3,372	3,411
Income tax expense	1,164	1,366
Net income	$ 2,208	$ 2,045
Per share data:
Basic net income	$ 0.13	$ 0.14
Diluted net income	$ 0.12	$ 0.12
Weighted average number of common shares outstanding:
Basic	17,078,192	14,527,371
Diluted	17,774,051	17,128,134

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