CONSOLIDATED STATEMENTS OF INCOME (unaudited) (USD $)	3 Months Ended				6 Months Ended
	Jul. 31, 2011		Jul. 31, 2010		Jul. 31, 2011		Jul. 31, 2010
Income Statement
Net sales	$ 23,089,343		$ 21,436,886		$ 46,519,246		$ 43,713,963
Cost of goods sold	14,952,362		13,593,734		30,324,060		27,889,272
Gross profit	8,136,981		7,843,152		16,195,186		15,824,691
Operating expenses
Selling	2,924,062		2,766,920		5,840,188		5,699,817
General and administrative	2,990,426		2,769,202		6,049,529		5,714,804
Total selling, general and administrative expenses	5,914,488		5,536,122		11,889,717		11,414,621
Income from operations	2,222,493		2,307,030		4,305,469		4,410,070
Interest expense	(49,908)		(27,176)		(98,709)		(109,686)
Other income, net	85,344		72,765		191,330		190,233
Income before taxes	2,257,929		2,352,619		4,398,090		4,490,617
Provision for taxes	767,695		799,889		1,495,349		1,526,809
Net income	$ 1,490,234		$ 1,552,730		$ 2,902,741		$ 2,963,808
Earnings per share, basic [1] (in dollars per share)	$ 0.100	[1]	$ 0.110	[1]	$ 0.200	[1]	$ 0.200	[1]
Earnings per share, diluted [2] (in dollars per share)	$ 0.100	[2]	$ 0.110	[2]	$ 0.200	[2]	$ 0.200	[2]
Cash dividend per share - declared [3] (in dollars per share)	$ 0.066	[3]	$ 0.060	[3]	$ 0.132	[3]	$ 0.120	[3]
Cash dividend per share - paid [3] (in dollars per share)	$ 0.066	[3]	$ 0.060	[3]	$ 0.132	[3]	$ 0.120	[3]

[1] Basic earnings per share are based upon the weighted average number of shares outstanding of 14,659,331 and 14,619,614 for the six-month periods ended July 31, 2011 and 2010, respectively, and 14,659,281 and 14,619,443 for the three-month periods ended July 31, 2011 and 2010, respectively.

[2] Diluted earnings per share are based upon the weighted average number of shares outstanding of 14,824,680 and 14,709,756 for the six-month periods ended July 31, 2011 and 2010, respectively, and 14,833,239 and 14,702,134 for the three-month periods ended July 31, 2011 and 2010, respectively.

[3] The Board of Directors declared quarterly dividends of $.066 per share payable on March 17, 2011, June 15, 2011 and September 15, 2011 to shareholders of record at the close of business on March 3, 2011, June 1, 2011 and September 1, 2011, respectively. The Board of Directors declared quarterly dividends of $.06 per share payable on March 12, 2010, June 11, 2010 and September 15, 2010 to shareholders of record at the close of business on February 26, 2010, May 28, 2010, and September 1, 2010, respectively.