STOCKHOLDERS' EQUITY (Details) (USD $)	9 Months Ended
	Oct. 31, 2012	Oct. 31, 2011	Sep. 30, 2011
Dividends [Abstract]
Fair Value of Shares Issued	$ 500,000	$ 1,366,000
Stock Repurchase Activity [Abstract]
Number of shares authorized for repurchase (in shares)			1,000,000
Cash consideration for repurchase of common stock	6,025,000	569,000	10,300,000
Total shares remain available for purchase under the plan	167,000
Dividends Declaration Date One [Member]
Dividends [Abstract]
Declared Date	Dec. 14, 2011
Record Date	Mar. 13, 2012
Payable Date	Apr. 23, 2012
Amount paid in Cash	948,000
Fair Value of Shares Issued	128,000
Dividends Declaration Date Two [Member]
Dividends [Abstract]
Declared Date	Mar. 20, 2012
Record Date	Jun. 04, 2012
Payable Date	Jul. 16, 2012
Amount paid in Cash	893,000
Fair Value of Shares Issued	206,000
Dividends Declaration Date Three [Member]
Dividends [Abstract]
Declared Date	Jun. 12, 2012
Record Date	Aug. 28, 2012
Payable Date	Oct. 09, 2012
Amount paid in Cash	922,000
Fair Value of Shares Issued	$ 166,000
Dividends Declaration Date Four [Member]
Dividends [Abstract]
Declared Date	Sep. 05, 2012
Record Date	Nov. 27, 2012
Payable Date	Dec. 28, 2012
Dividends Declaration Date Five [Member]
Dividends [Abstract]
Declared Date	Dec. 12, 2012
Record Date	Dec. 18, 2012
Payable Date	Dec. 28, 2012
Common Class A [Member]
Dividends [Abstract]
Dividend (in dollars Per Share)	$ 0.072
Stock Repurchase Activity [Abstract]
Average share price	$ 13.21
Shares repurchased (in shares)	411,000		746,000
Common Class A [Member] | Dividends Declaration Date One [Member]
Dividends [Abstract]
Class A Shares Issued	12,001
Common Class A [Member] | Dividends Declaration Date Two [Member]
Dividends [Abstract]
Class A Shares Issued	15,001
Common Class A [Member] | Dividends Declaration Date Three [Member]
Dividends [Abstract]
Class A Shares Issued	13,001
Common Class A [Member] | Dividend Declared [Member]
Dividends [Abstract]
Dividend (in dollars Per Share)	$ 0.288
Common Class B [Member]
Dividends [Abstract]
Dividend (in dollars Per Share)	$ 0.06
Stock Repurchase Activity [Abstract]
Average share price	$ 13.06
Shares repurchased (in shares)	46,000		87,000
Common Class B [Member] | Dividend Declared [Member]
Dividends [Abstract]
Dividend (in dollars Per Share)	$ 0.24