Employee Stock Compensation (Details) (USD $)	6 Months Ended	12 Months Ended
	Jul. 31, 2013	Jan. 31, 2013
Number of Shares, Outstanding at January 31, 2013	24,000
Number of Shares, Granted during the six months ended July 31, 2013	0
Number of Shares, Outstanding at July 31, 2013	24,000	24,000
Number of Shares, Exercisable at July 31, 2013	24,000
Number of Shares, Reserved for future issuance, Directors' Plan (expired on December 31, 2012)	0
Weighted Average Exercise Price per Share, Outstanding at January 31, 2013	$ 7.47
Weighted Average Exercise Price per Share, Granted during the six months ended July 31, 2013	$ 0
Weighted Average Exercise Price per Share, Outstanding at July 31, 2013	$ 7.47	$ 7.47
Weighted Average Exercise Price per Share, Exercisable at July 31, 2013	$ 7.47
Weighted Average Remaining Contractual Term, Outstanding	3 years 5 months 12 days	3 years 11 months 12 days
Weighted Average Remaining Contractual Term, Exercisable at July 31, 2013	3 years 5 months 12 days
Aggregate Intrinsic Value, Outstanding at January 31, 2013	$ 1,300
Aggregate Intrinsic Value, Granted during the six months ended July 31, 2013	$ 0
Aggregate Intrinsic Value, Outstanding at July 31, 2013	0	1,300
Aggregate Intrinsic Value, Exercisable at July 31, 2013	$ 0