Consolidated Statements Of Earnings (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Consolidated Statements Of Earnings [Abstract]
Net sales	$ 112,373,000	$ 105,878,000
Costs and expenses:
Cost of goods sold	72,114,000	68,411,000
Selling and administrative expenses	34,646,000	31,697,000
Interest expense	27,000	23,000
Total expenses	106,787,000	100,131,000
Earnings before taxes on income	5,586,000	5,747,000
Taxes on income	1,450,000	1,940,000
Net earnings	$ 4,136,000	$ 3,807,000
Per Share Data:
Net earnings	$ 0.69	$ 0.64
Diluted
Net earnings	$ 0.68	$ 0.64
Cash dividends per common share	$ 0.54	$ 0.54