PROPERTY, PLANT AND EQUIPMENT - Additional Information (Details 2) - USD ($)	3 Months Ended		9 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2015	Oct. 31, 2014
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 186,000	$ 140,000	$ 444,000	$ 423,000
Costs of maintenance and repairs	174,000	99,000	445,000	218,000
Selling, General and Administrative Expenses [Member]
Property, Plant and Equipment [Line Items]
Rent expense	84,000	48,000	182,000	146,000
Costs of Revenues [Member]
Property, Plant and Equipment [Line Items]
Rent expense	$ 3,055,000	$ 4,686,000	$ 11,462,000	$ 9,247,000