Statements of Income (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Net sales	$ 14,338,512	$ 13,723,074
Costs and expenses:
Cost of sales	5,650,160	5,250,121
Operating expenses	2,552,790	2,567,395
Pension plan termination		847,744
Total costs and expenses	8,202,950	8,665,260
Income from operations	6,135,562	5,057,814
Other income:
Investment income	332,652	455,786
Gain on sale of assets	18,251
Income from damage settlement	385,182
Total other income	736,085	455,786
Income from operations before income taxes	6,871,647	5,513,600
Provision for income taxes	2,155,117	1,713,908
Net income	$ 4,716,530	$ 3,799,692
Earnings per common share (basic and diluted) (in Dollars per share)	$ 1.03	$ 0.80
Weighted average shares (basic and diluted) (in Shares)	4,596,439	4,738,357