Condensed Consolidated Statements Of Earnings (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Condensed Consolidated Statements Of Earnings
Net sales	$ 27,505,656	$ 26,629,161	$ 54,404,256	$ 52,609,023
Costs and expenses:
Cost of goods sold	17,577,789	17,245,178	34,625,470	34,293,552
Selling and administrative expenses	8,489,733	7,845,209	17,395,583	15,966,006
Interest expense	5,735	5,604	11,882	8,078
Total expenses	26,073,257	25,095,991	52,032,935	50,267,636
Earnings before taxes on income	1,432,399	1,533,170	2,371,321	2,341,387
Income tax expense	500,000	550,000	840,000	850,000
Net earnings	$ 932,399	$ 983,170	$ 1,531,321	$ 1,491,387
Weighted average number of shares outstanding during the period (Basic)	5,995,147	5,901,723	5,986,987	5,904,889
Weighted average number of shares outstanding during the period (Diluted)	6,092,118	5,957,641	6,081,544	5,958,825
Per Share Data :
Net earnings	$ 0.16	$ 0.17	$ 0.26	$ 0.25
Diluted:
Net earnings	$ 0.15	$ 0.17	$ 0.25	$ 0.25
Cash dividends per common share	$ 0.135	$ 0.135	$ 0.27	$ 0.27