Retirement Plans (Life Insurance) (Details) (USD $)	12 Months Ended
	Jan. 31, 2015	Jan. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Liability for Future Policy Benefits, Life	$ 9,486,000	$ 9,462,000
Life Insurance, Corporate or Bank Owned, Amount	2,950,000
Liability beginning of year	2,401,000	2,316,000
Accretion expense	104,000	85,000
Present value of death benefits paid	(117,000)	0
Liability end of year	2,388,000	2,401,000
Cash surrender value	2,924,000	3,076,000
Company purchase of life insurance for participants	$ 5,696,000	$ 5,990,000