DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Assets and Expenses (Details) - USD ($)	12 Months Ended
	Jan. 31, 2018	Jan. 31, 2017
Intangible Assets
Estimated Useful Life	5 years	5 years
Impairment of intangible assets		$ 89,000
Impairment of Long-Lived Assets
Depreciation expense	$ 52,000	141,000
Advertising Expenses
Advertising expenses	29,000	335,000
Income taxes
Unrecognized tax benefits, interest on income tax expense	$ 0	0
Furniture | Minimum
Property and Equipment
Estimated Useful Life	5 years
Furniture | Maximum
Property and Equipment
Estimated Useful Life	7 years
Laboratory equipment | Minimum
Property and Equipment
Estimated Useful Life	3 years
Laboratory equipment | Maximum
Property and Equipment
Estimated Useful Life	5 years
Computer and equipment | Minimum
Property and Equipment
Estimated Useful Life	3 years
Computer and equipment | Maximum
Property and Equipment
Estimated Useful Life	5 years
Software
Property and Equipment
Estimated Useful Life	5 years
Impairment of Long-Lived Assets
Depreciation expense		$ 73,000