Consolidated Statements of Income (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Consolidated Statements of Income
Net sales	$ 37,117,830	$ 34,223,772
Cost of goods sold	28,254,775	26,572,370
Gross profit	8,863,055	7,651,402
Selling and administrative expenses	5,397,861	5,186,760
Operating profit	3,465,194	2,464,642
Other income:
Interest income	30,802	34,138
Gain from disposal of equipment	114,658	67,946
Other income	15,375	16,015
Income before income taxes	3,626,029	2,582,741
Provision for income taxes	1,147,000	837,000
Net income	$ 2,479,029	$ 1,745,741
Average common shares outstanding	966,132	966,132
Earnings per share	$ 2.57	$ 1.81
Cash dividends declared per share	$ 0.63	$ 0.90