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CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Income Statement [Abstract]
Net sales	$ 24,039	$ 22,147	$ 45,492	$ 42,575
Cost of goods sold	16,429	15,638	31,862	30,054
Gross profit	7,610	6,509	13,630	12,521
Selling, general and administrative expense	4,667	4,351	9,253	8,780
Operating income	2,943	2,158	4,377	3,741
Other non-operating income, net	11		27
Interest expense	(58)	(111)	(117)	(232)
Income from continuing operations before income taxes	2,896	2,047	4,287	3,509
Provision for income taxes	1,082	843	1,578	1,442
Income from continuing operations	1,814	1,204	2,709	2,067
Income from discontinued operations, net of tax		889		1,549
Net income	$ 1,814	$ 2,093	$ 2,709	$ 3,616
Basic and diluted income per common share:
Continuing operations	$ 0.15	$ 0.10	$ 0.22	$ 0.17
Discontinuing operations		$ 0.07		$ 0.12
Net income	$ 0.15	$ 0.17	$ 0.22	$ 0.29
Cash dividends per share	$ 0.050	$ 0.125	$ 0.175	$ 0.250
Shares used in the calculation of basic and diluted income per share	12,394	12,388	12,393	12,387

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