Capital Stock (Details) (USD $)	12 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2011
Capital Stock [Abstract]
Common stock, shares authorized (in shares)	20,000,000	20,000,000
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, shares issued (in shares)	11,475,000	11,306,000
Common stock, shares outstanding (in shares)	11,475,000	11,306,000
Exercised (in shares)	118,000	86,000
Stock retired for option exercise (in shares)		4,000
Vested (in shares)	51,000	48,000
Stock issued to Mill Road (in shares)		933,000	933,333