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DEBT, Note Payable (Details) - USD ($)
9 Months Ended
May. 30, 2012
Oct. 31, 2015
Jan. 31, 2015
Debt Instrument [Line Items]      
Note payable   $ 14,781,000 $ 15,086,000
Less current maturities   (417,000) (406,000)
Long-term debt   $ 14,364,000 $ 14,680,000
Rabobank N.A [Member] | Unsecured Credit Agreement [Member] | LIBOR [Member]      
Notes Payable [Abstract]      
One month LIBOR   0.75%  
2012 Mortgage [Member] | Rabobank N.A [Member] | Credit Agreement [Member] | Quad Ortega Hill LLC [Member]      
Notes Payable [Abstract]      
Original principal amount $ 16,100,000    
Principal and interest 88,100    
Final principal payment $ 11,700,000    
Unpaid balance   $ 14,800,000  
2012 Mortgage [Member] | Rabobank N.A [Member] | Credit Agreement [Member] | Quad Ortega Hill LLC [Member] | LIBOR [Member]      
Notes Payable [Abstract]      
One month LIBOR 2.25% 0.19%  
2012 Mortgage [Member] | Rabobank N.A [Member] | Swap Agreement [Member] | Quad Ortega Hill LLC [Member]      
Notes Payable [Abstract]      
Initial notional amount of swap agreement $ 16,100,000    
Fixed interest rate 4.31%