Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Condensed Consolidated Statements Of Operations
Net sales	$ 20,363	$ 19,036	$ 64,835	$ 57,466
Cost of goods sold	12,937	12,396	41,644	36,835
Gross profit	7,426	6,640	23,191	20,631
Selling, general and administrative expenses	6,067	5,520	18,296	16,868
Operating income	1,359	1,120	4,895	3,763
Interest:
Interest expense	147	112	340	323
Interest income	(64)	(42)	(140)	(132)
Interest expense, net	83	70	200	191
Other expense (income), net	7	20	93	(2)
Total other expense	90	90	293	189
Income before income taxes	1,269	1,030	4,602	3,574
Income tax expense	471	348	1,484	1,029
Net income	$ 798	$ 682	$ 3,118	$ 2,545
Basic earnings per share	$ 0.26	$ 0.22	$ 1.00	$ 0.82
Diluted earnings per share	$ 0.26	$ 0.22	$ 1.00	$ 0.82
Weighted average number of common shares outstanding - denominator used for basic per share computations	3,103	3,102	3,114	3,090
Weighted average number of dilutive stock options outstanding	30	18	18	15
Denominator used for diluted per share computations	3,133	3,120	3,132	3,105
Dividends declared per share	$ 0.07	$ 0.07	$ 0.21	$ 0.19