CONSOLIDATED BALANCE SHEETS [Parenthetical] (USD $)	Jan. 31, 2013	Jan. 31, 2012
Allowance for doubtful accounts (in dollars)	$ 342,000	$ 270,200
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,500,000	1,500,000
Preferred stock, shares issued	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	5,688,600	5,581,919
Common stock, shares outstanding	5,332,159	5,225,478
Treasury stock, shares	356,441	356,441