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INCOME TAXES (Detail) (USD $)
 12 Months Ended
Jan. 31, 2013
Jan. 31, 2012
Jan. 31, 2011
Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax $ 23,589,000 $ 23,994,000  
Income to be Generated for Utilization of Alternative Minimum Tax Credit Carryforwards 157,000,000    
Operating Loss Carryforwards 21,800,000    
Deferred Tax Assets, Valuation Allowance 1,891,000 1,676,000  
Valuation Allowance, Deferred Tax Asset, Change in Amount 215,000 434,000 664,000
Income Taxes Paid 51,000 1,550,000 1,310,000
Proceeds from Income Tax Refunds 1,005,000 7,208,000 5,691,000
Unrecognized Tax Benefit 1,768,000    
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued 389,000    
Unrecognized Tax Benefits that Would Impact Effective Tax Rate 82,000    
State and Local Jurisdiction [Member]
      
Operating Loss Carryforwards 40,900,000    
Retained Earnings [Member]
      
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets $ 287,000