ACCOUNTING POLICIES (Details) - USD ($)	3 Months Ended
	Apr. 30, 2017	Apr. 30, 2016	Jan. 31, 2017
ACCOUNTING POLICIES (Details) [Line Items]
Income Taxes Paid	$ 0	$ 0
Proceeds from Income Tax Refunds	0	$ 0
Unrecognized Tax Benefits			$ 2,096,000
Income Tax Examination, Penalties and Interest Accrued	238,000		221,000
Unrecognized Tax Benefits, Period Increase (Decrease)	$ 2,004,000
Property, Plant and Equipment, Depreciation Methods	Depreciationis computed using the straight-line method.
Approximate [Member]
ACCOUNTING POLICIES (Details) [Line Items]
Unrecognized Tax Benefits	$ 2,004,000		$ 1,875,000
Cost of Sales [Member]
ACCOUNTING POLICIES (Details) [Line Items]
Maximum Percentage of Equity Ownership Interest Which May be Considered for Equity Method of Accounting	20.00%
Building and Building Improvements [Member] | Minimum [Member]
ACCOUNTING POLICIES (Details) [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	15
Building and Building Improvements [Member] | Maximum [Member]
ACCOUNTING POLICIES (Details) [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	40 years
Fixtures And Equipment [Member] | Minimum [Member]
ACCOUNTING POLICIES (Details) [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	2
Fixtures And Equipment [Member] | Maximum [Member]
ACCOUNTING POLICIES (Details) [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	20 years