Condensed Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net sales	$ 8,429,201	$ 8,134,104	$ 17,629,519	$ 15,948,472
Cost of goods sold	6,533,152	6,205,420	13,655,181	12,575,280
Gross profit	1,896,049	1,928,684	3,974,338	3,373,192
Selling and administrative expenses	1,280,038	1,258,503	2,671,636	2,543,508
Operating profit	616,011	670,181	1,302,702	829,684
Other income:
Interest income	7,833	11,089	16,685	23,018
Gain from disposal of property and equipment	27,500	187,073	57,500	189,063
Other nonoperating income	4,088	4,178	8,279	7,778
Income before provision for income taxes	655,432	872,521	1,385,166	1,049,543
Provision for income taxes	215,000	285,000	451,000	345,000
Net income	$ 440,432	$ 587,521	$ 934,166	$ 704,543
Average common shares outstanding	966,132	966,132	966,132	966,132
Net income per share	$ 0.46	$ 0.61	$ 0.97	$ 0.73
Cash dividends declared per share	$ 0.15	$ 0.12	$ 0.30	$ 0.24