BALANCE SHEET DETAILS - Inventories and Property and equipment, net (Details) - USD ($)	3 Months Ended	12 Months Ended
	Jan. 31, 2017	Jan. 31, 2017	Jan. 31, 2016
Inventories:
Work in process	$ 23,000	$ 23,000	$ 18,000
Finished goods	8,000	8,000	28,000
Channel inventory	7,000	7,000	54,000
Total	38,000	38,000	100,000
Property and equipment, net:
Total	202,000	202,000	304,000
Less: accumulated depreciation	(82,000)	(82,000)	(88,000)
Property and equipment, net	120,000	120,000	216,000
Depreciation		141,000	56,000
Furniture
Property and equipment, net:
Total	21,000	21,000	21,000
Laboratory equipment
Property and equipment, net:
Total	69,000	69,000	27,000
Computer and equipment
Property and equipment, net:
Total	112,000	$ 112,000	112,000
Software
Property and equipment, net:
Total			$ 144,000
Depreciation	$ 73,000