STOCKHOLDERS' EQUITY (Details) $ / shares in Units, $ in Thousands			12 Months Ended			53 Months Ended
	Feb. 18, 2015 USD ($) shares	Jan. 22, 2015 USD ($) shares	Jan. 31, 2016 USD ($) Vote Class $ / shares shares	Jan. 31, 2015 USD ($) shares	Jan. 31, 2014 USD ($)	Jan. 31, 2016 USD ($) Vote Class $ / shares shares	Sep. 30, 2011 shares
Dividends [Abstract]
Number of classes of common stock | Class			2			2
Dividends common stock percentage that Class A is entitled to as compared to class B			120.00%
Amount paid | $			$ 5,235	$ 4,452	$ 4,362
Issuance of common stock [Abstract]
Net proceeds from stock issued | $			8,365	37,046	0
Stock Repurchase Activity [Abstract]
Cash consideration for repurchase of common stock | $			$ 0	$ 0	$ 686	$ 12,500
Maximum [Member]
Stock Repurchase Activity [Abstract]
Number of shares authorized for repurchase (in shares) | shares							1,000,000
Dividends Declaration Date One [Member]
Dividends [Abstract]
Declaration date			Dec. 09, 2015
Record date			Dec. 23, 2015
Payable			Jan. 06, 2016
Amount paid | $			$ 1,313
Dividends Declaration Date Two [Member]
Dividends [Abstract]
Declaration date			Sep. 09, 2015
Record date			Sep. 23, 2015
Payable			Sep. 30, 2015
Amount paid | $			$ 1,313
Dividends Declaration Date Three [Member]
Dividends [Abstract]
Declaration date			Jun. 09, 2015
Record date			Jun. 23, 2015
Payable			Jun. 30, 2015
Amount paid | $			$ 1,310
Dividends Declaration Date Four [Member]
Dividends [Abstract]
Declaration date			Apr. 15, 2015
Record date			Apr. 29, 2015
Payable			May 06, 2015
Amount paid | $			$ 1,299
Common Class A [Member]
Dividends [Abstract]
Stock voting right (in votes per share) | Vote			0.05			0.05
Issuance of common stock [Abstract]
Stock issued (in shares) | shares	450,000	2,000,000	450,000	2,000,000
Net proceeds from stock issued | $	$ 8,400	$ 37,000	$ 8,400	$ 37,000
Stock Repurchase Activity [Abstract]
Shares repurchased (in shares) | shares						897,000
Common Class A [Member] | Dividends Declaration Date One [Member]
Dividends [Abstract]
Dividend (in dollars per share) | $ / shares			$ 0.072			$ 0.072
Common Class A [Member] | Dividends Declaration Date Two [Member]
Dividends [Abstract]
Dividend (in dollars per share) | $ / shares			0.072			0.072
Common Class A [Member] | Dividends Declaration Date Three [Member]
Dividends [Abstract]
Dividend (in dollars per share) | $ / shares			0.072			0.072
Common Class A [Member] | Dividends Declaration Date Four [Member]
Dividends [Abstract]
Dividend (in dollars per share) | $ / shares			$ 0.072			$ 0.072
Common Class B [Member]
Dividends [Abstract]
Stock voting right (in votes per share) | Vote			1			1
Stock Repurchase Activity [Abstract]
Shares repurchased (in shares) | shares						103,000
Common Class B [Member] | Dividends Declaration Date One [Member]
Dividends [Abstract]
Dividend (in dollars per share) | $ / shares			$ 0.06			$ 0.06
Common Class B [Member] | Dividends Declaration Date Two [Member]
Dividends [Abstract]
Dividend (in dollars per share) | $ / shares			0.06			0.06
Common Class B [Member] | Dividends Declaration Date Three [Member]
Dividends [Abstract]
Dividend (in dollars per share) | $ / shares			0.06			0.06
Common Class B [Member] | Dividends Declaration Date Four [Member]
Dividends [Abstract]
Dividend (in dollars per share) | $ / shares			$ 0.06			$ 0.06