Condensed Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Net sales	$ 8,134,104	$ 7,938,533	$ 15,948,472	$ 14,699,926
Cost of goods sold	6,205,420	6,028,069	12,575,280	11,523,599
Gross profit	1,928,684	1,910,464	3,373,192	3,176,327
Selling and administrative expenses	1,258,503	1,322,201	2,543,508	2,556,036
Operating profit	670,181	588,263	829,684	620,291
Other income:
Interest income	11,089	13,119	23,018	26,360
Gain from disposal of property and equipment	187,073	6,500	189,063	6,500
Other nonoperating income	4,178	4,178	7,778	7,778
Income before provision for income taxes	872,521	612,060	1,049,543	660,929
Provision for income taxes	285,000	192,000	345,000	207,000
Net income	$ 587,521	$ 420,060	$ 704,543	$ 453,929
Average common shares outstanding	966,132	966,132	966,132	966,132
Net income per share	$ 0.61	$ 0.43	$ 0.73	$ 0.47
Cash dividends declared per share	$ 0.12	$ 0.10	$ 0.24	$ 0.20