STOCKHOLDERS' EQUITY (Details) (USD $)	3 Months Ended		20 Months Ended
	Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2013	Sep. 30, 2011
Dividends [Abstract]
Fair value of shares issued	$ 145,000	$ 128,000
Stock Repurchase Activity [Abstract]
Number of shares authorized for repurchase (in shares)				1,000,000
Cash consideration for repurchase of common stock	686,000	1,791,000	12,500,000
Dividends Declaration Date One [Member]
Dividends [Abstract]
Declaration date	Apr. 24, 2013
Record date	May 08, 2013
Payable	May 15, 2013
Amount Paid in Cash	1,083,000
Fair value of shares issued	0
Dividends Declaration Date Two [Member]
Dividends [Abstract]
Declaration date	Dec. 11, 2012
Record date	Dec. 26, 2012
Payable	Feb. 08, 2013
Amount Paid in Cash	947,000
Fair value of shares issued	$ 145,000
Common Class A [Member]
Stock Repurchase Activity [Abstract]
Shares repurchased (in shares)	45,000		897,000
Average price per share (in dollars per share)	$ 13.34
Common Class A [Member] | Dividends Declaration Date One [Member]
Dividends [Abstract]
Dividend (in dollars per share)	$ 0.072		$ 0.072
Class A shares issued (in shares)	0
Common Class A [Member] | Dividends Declaration Date Two [Member]
Dividends [Abstract]
Dividend (in dollars per share)	$ 0.072		$ 0.072
Class A shares issued (in shares)	10,000
Common Class B [Member]
Stock Repurchase Activity [Abstract]
Shares repurchased (in shares)	8,000		103,000
Average price per share (in dollars per share)	$ 12.02
Common Class B [Member] | Dividends Declaration Date One [Member]
Dividends [Abstract]
Dividend (in dollars per share)	$ 0.06		$ 0.06
Common Class B [Member] | Dividends Declaration Date Two [Member]
Dividends [Abstract]
Dividend (in dollars per share)	$ 0.06		$ 0.06