Stock-Based Compensation and Stockholders' Rights (Option Activity) (Details) (USD $)	12 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2011
Options
Beginning balance	0	12,100	12,100
Granted	0	0	0
Exercised	0	0	0
Forfeited	0	(12,100)	0
Ending balance	0	0	12,100
Exercisable at end of year	0	0	12,100
Weighted- Average Exercise Price
Beginning balance	$ 0.00	$ 8.82	$ 8.82
Granted	$ 0.00	$ 0.00	$ 0.00
Exercised	$ 0.00	$ 0.00	$ 0.00
Forfeited	$ 0.00	$ 0.00	$ 0.00
Ending balance	$ 0.00	$ 0.00	$ 8.82
Exercisable at end of year	$ 0.00	$ 0.00	$ 8.82