STOCKHOLDERS' EQUITY (Details) (USD $)	12 Months Ended			26 Months Ended
	Jan. 31, 2014 Class	Jan. 31, 2013	Jan. 31, 2012	Oct. 31, 2013	Sep. 30, 2011
Dividends [Abstract]
Number of classes of common stock	2
Dividends common stock percentage that Class A is entitled to as compared to class B (in hundredths)	120.00%
Declaration date	Dec. 11, 2012
Amount Paid in Cash	$ 4,362,000	$ 8,677,000	$ 4,095,000
Fair value of shares issued	145,000	622,000	1,513,000
Stock Repurchase Activity [Abstract]
Number of shares authorized for repurchase (in shares)					1,000,000
Cash consideration for repurchase of common stock	686,000	7,530,000	4,319,000	12,500,000
Dividends Declaration Date One [Member]
Dividends [Abstract]
Record date	Dec. 24, 2013
Payable	Jan. 06, 2014
Amount Paid in Cash	1,095,000
Class A shares issued (in shares)	0
Fair value of shares issued	0
Dividends Declaration Date Two [Member]
Dividends [Abstract]
Record date	Sep. 24, 2013
Payable	Oct. 01, 2013
Amount Paid in Cash	1,090,000
Class A shares issued (in shares)	0
Fair value of shares issued	0
Dividends Declaration Date Three [Member]
Dividends [Abstract]
Record date	Jun. 25, 2013
Payable	Jul. 02, 2013
Amount Paid in Cash	1,089,000
Class A shares issued (in shares)	0
Fair value of shares issued	0
Dividends Declaration Date Four [Member]
Dividends [Abstract]
Record date	May 08, 2013
Payable	May 15, 2013
Amount Paid in Cash	1,083,000
Class A shares issued (in shares)	0
Fair value of shares issued	0
Dividends Declaration Date Five [Member]
Dividends [Abstract]
Record date	Dec. 26, 2012
Payable	Feb. 08, 2013
Amount Paid in Cash	947,000
Class A shares issued (in shares)	10,000
Fair value of shares issued	$ 145,000
Common Class A [Member]
Dividends [Abstract]
Stock voting right (in votes per share)	0.05
Stock Repurchase Activity [Abstract]
Shares repurchased (in shares)				897,000
Common Class A [Member] | Dividends Declaration Date One [Member]
Dividends [Abstract]
Dividend (in dollars per share)	$ 0.072
Common Class A [Member] | Dividends Declaration Date Two [Member]
Dividends [Abstract]
Dividend (in dollars per share)	$ 0.072
Common Class A [Member] | Dividends Declaration Date Three [Member]
Dividends [Abstract]
Dividend (in dollars per share)	$ 0.072
Common Class A [Member] | Dividends Declaration Date Four [Member]
Dividends [Abstract]
Dividend (in dollars per share)	$ 0.072
Common Class A [Member] | Dividends Declaration Date Five [Member]
Dividends [Abstract]
Dividend (in dollars per share)	$ 0.072
Common Class B [Member]
Dividends [Abstract]
Stock voting right (in votes per share)	1
Stock Repurchase Activity [Abstract]
Shares repurchased (in shares)				103,000
Common Class B [Member] | Dividends Declaration Date One [Member]
Dividends [Abstract]
Dividend (in dollars per share)	$ 0.060
Common Class B [Member] | Dividends Declaration Date Two [Member]
Dividends [Abstract]
Dividend (in dollars per share)	$ 0.060
Common Class B [Member] | Dividends Declaration Date Three [Member]
Dividends [Abstract]
Dividend (in dollars per share)	$ 0.060
Common Class B [Member] | Dividends Declaration Date Four [Member]
Dividends [Abstract]
Dividend (in dollars per share)	$ 0.060
Common Class B [Member] | Dividends Declaration Date Five [Member]
Dividends [Abstract]
Dividend (in dollars per share)	$ 0.060