DEBT, Note Payable (Details) - USD ($)		6 Months Ended
	May. 30, 2012	Jul. 31, 2015	Jan. 31, 2015
Debt Instrument [Line Items]
Note payable		$ 14,882,000	$ 15,086,000
Less current maturities		(413,000)	(406,000)
Long-term debt		$ 14,469,000	$ 14,680,000
Rabobank N.A [Member] | Unsecured Credit Agreement [Member] | LIBOR [Member]
Notes Payable [Abstract]
One month LIBOR (in hundredths)		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		$ 14,900,000
2012 Mortgage [Member] | Rabobank N.A [Member] | Credit Agreement [Member] | Quad Ortega Hill LLC [Member] | LIBOR [Member]
Notes Payable [Abstract]
One month LIBOR (in hundredths)	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 (in hundredths)	4.31%