EARNINGS PER SHARE COMPUTATIONS (Tables)

12 Months Ended

Jan. 31, 2013

EARNINGS PER SHARE COMPUTATIONS [Abstract]

Summary of shares used in computing basic and diluted net income per common share

The following table summarizes the shares used in computing basic and diluted net income per common share:

	January 31,
	2013		2012		2011
Numerator:
Net income	$	8,045,223	$	7,133,701	$	6,139,132
Denominator:
Weighted average common shares outstanding during the period for basic computation		14,685,038		14,662,055		14,629,215
Dilutive effect of stock-based compensation plans		52,997		112,637		129,444
Weighted average common shares outstanding during the period for diluted computation		14,738,035		14,774,692		14,758,659
Earnings per share, basic	$	.55	$	.49	$	.42
Earnings per share, diluted	$	.55	$	.48	$	.42