CONDENSED CONSOLIDATED BALANCE SHEETS [Parenthetical] (USD $)	Apr. 30, 2014	Jan. 31, 2014
Allowance for doubtful accounts (in dollars)	$ 598,100	$ 588,800
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	5,714,950	5,713,180
Common stock, shares outstanding	5,358,509	5,356,739
Treasury stock, shares	356,441	356,441