Consolidated Statements of Income (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Consolidated Statements of Income [Abstract]
Net sales	$ 135,052	$ 139,192
Cost of sales	92,609	101,024
Gross profit	42,443	38,168
Selling and administrative	25,429	25,359
Amortization	331	441
Income from operations	16,683	12,368
Other (expense) income, net	(152)	452
Interest expense (including related parties interest of $217 and $237, respectively)	(1,168)	(1,137)
Income from operations before income taxes	15,363	11,683
Income tax expense	4,513	3,411
Net income	$ 10,850	$ 8,272
Per share data:
Basic net income	$ 0.73	$ 0.58
Diluted net income	$ 0.65	$ 0.51
Weighted average number of common shares outstanding:
Basic	14,813,186	14,386,410
Diluted	17,246,058	17,115,284