Condensed Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Condensed Consolidated Statements Of Operations
Net sales	$ 33,396	$ 28,412	$ 52,548	$ 46,063
Cost of goods sold	21,675	18,331	33,950	29,554
Gross profit	11,721	10,081	18,598	16,509
Selling, general and administrative expenses	7,983	6,889	14,235	12,803
Operating income	3,738	3,192	4,363	3,706
Interest:
Interest expense	108	122	197	249
Interest income	(2)	(48)	(9)	(106)
Interest expense, net	106	74	188	142
Other (income) expense, net	(3)	25	16	28
Total other (income) expense, net	103	99	204	171
Income before income taxes	3,635	3,093	4,159	3,536
Income tax expense	1,093	883	1,248	1,015
Net income	$ 2,542	$ 2,210	$ 2,911	$ 2,520
Basic earnings per share	$ 0.79	$ 0.70	$ 0.91	$ 0.80
Diluted earnings per share	$ 0.72	$ 0.68	$ 0.83	$ 0.78
Weighted average number of common shares outstanding - denominator used for basic per share computations	3,210,000	3,156,000	3,206,000	3,144,000
Weighted average number of dilutive stock options outstanding	329,000	110,000	281,000	90,000
Denominator used for diluted per share computations	3,539,000	3,266,000	3,488,000	3,234,000
Dividends declared per share	$ 0.08	$ 0.08	$ 0.16	$ 0.15