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INCOME TAXES (Detail) - Schedule of Effective Income Tax Reconciliation
 12 Months Ended
Jan. 31, 2013
Jan. 31, 2012
Jan. 31, 2011
Federal income tax at statutory rate 35.00% 35.00% 35.00%
State and local taxes, net of federal tax benefit 5.30% 4.10% 0.90%
Net increase in valuation allowance (4.70%) 1.60% 2.10%
Domestic production activities deduction   (3.80%)  
Uncertain tax positions (1.40%) 0.20% 0.30%
Noncontrolling interest 6.50% (4.10%) (2.30%)
Other 1.80% 0.20% (0.30%)
Total 42.50% 33.20% 35.70%