Note 7 - Accrued Liabilities (Details) - USD ($)	Jul. 31, 2016	Jan. 31, 2016
Uninvoiced materials and services received	$ 7,000	$ 331,000
Accrued legal and professional fees	71,000	169,000
Accrued payroll and related expenses	36,000	33,000
Consulting	65,000	16,000
Other	146,000	138,000
	$ 325,000	$ 687,000