Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) (USD $)	Jul. 31, 2012	Jan. 31, 2012
Condensed Consolidated Balance Sheets [Abstract]
Preferred stock, par value	$ 1.00	$ 1.00
Preferred stock, shares authorized	1,000	1,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	20,000	20,000
Common stock, shares issued	13,656	13,556
Treasury stock, shares	925	925