DEBT (Details) (USD $)			6 Months Ended
	Jul. 31, 2013	Jan. 31, 2013	Jul. 31, 2013 Rabobank N.A. [Member] Unsecured Credit Agreement [Member]	Jul. 31, 2013 2012 Mortgage [Member] Rabobank N.A. [Member] Credit Agreement [Member] Quad Ortega Hill LLC [Member]
Debt Instrument [Line Items]
Note payable	$ 15,659,000	$ 15,846,000
Less current maturities	(380,000)	(372,000)
Long-term debt	15,279,000	15,474,000
Notes Payable [Abstract]
Original principal amount				16,100,000
Maturity date				Jun. 30, 2022
Basis spread on variable rate (in hundredths)				2.25%
One month LIBOR (in hundredths)				0.19%
Swap agreement notional amount				16,100,000
Principal and interest				88,100
Final principal payment				11,700,000
Unpaid balance				15,700,000
Fixed interest rate (in hundredths)				4.31%
Credit Facility [Abstract]
Maximum borrowing capacity			20,000,000
Maturity date			Jul. 15, 2014
Unused capacity commitment fee (in hundredths)			0.25%
Variable rate basis			one month LIBOR plus	one month LIBOR
Basis spread on variable rate (in hundredths)			0.75%
Covenant terms			among other provisions, minimum liquidity on a consolidated basis of $25 million in cash and equivalents at all times, a current ratio (calculated using current liabilities excluding deferred revenue) of not less than 1.3 to 1.0 determined at the end of each fiscal quarter, a leverage ratio of not more than 1.5 to 1.0 determined at the end of each fiscal quarter, and a debt service coverage ratio of not less than 1.5 to 1.0 determined at the end of each fiscal year.
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)			0.94%
Borrowings outstanding			$ 0