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Note 6 - Accrued Liabilities (Tables)
12 Months Ended
Jan. 31, 2017
Notes Tables  
Schedule of Accrued Liabilities [Table Text Block]
 
 
January 31,
 
 
January 31,
 
 
 
2017
 
 
2016
 
                 
Uninvoiced materials and services received
  $
7
    $
331
 
Accrued legal and professional fees
   
85
     
169
 
Consulting
   
80
     
16
 
Accrued payroll and related expenses
   
21
     
33
 
Other
   
158
     
138
 
    $
351
    $
687