DEBT (Details) (USD $)	3 Months Ended
	Apr. 30, 2015	Jan. 31, 2015
Debt Instrument [Line Items]
Note payable	$ 14,984,000	$ 15,086,000
Less current maturities	(409,000)	(406,000)
Long-term debt	14,575,000	14,680,000
Rabobank N.A [Member] | Unsecured Credit Agreement [Member]
Credit Facility [Abstract]
Maximum borrowing capacity	20,000,000
Maturity date	Jul. 15, 2017
Unused capacity commitment fee (in hundredths)	0.25%
Variable rate basis	One month LIBOR plus 0.75%
Basis spread on variable rate (in hundredths)	0.75%
Liquidity on a consolidated basis, Minimum	25,000,000
Current ratio, Minimum	1.3
Leverage ratio, Maximum	1.5
Debt service coverage ratio, Minimum	1.5
Effective borrowing rate (in hundredths)	0.93%
Borrowings outstanding	0
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	$ 15,000,000
Maturity date	Jun. 30, 2022
Basis spread on variable rate (in hundredths)	2.25%
One month LIBOR (in hundredths)	0.18%
Fixed interest rate (in hundredths)	4.31%
Credit Facility [Abstract]
Variable rate basis	One month LIBOR plus 2.25%