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Note 10 - Leases (Tables)
 3 Months Ended
Apr. 30, 2020
Notes Tables  
Supplemental Balance Sheet Information Related to Leases [Table Text Block]
Operating and Finance leases:
  
April 30, 2020
    
January 31, 2020
  
Finance leases assets:
                
Property and Equipment - gross
   $
1,613
     $
1,696
  
Accumulated depreciation and amortization
    
(573
 )    
(551
 )
Property and Equipment - net
   $
1,040
     $
1,145
  
                 
Finance lease liabilities:
                
Finance lease liability short-term
   $
404
     $
417
  
Finance lease liability long-term
    
540
      
677
  
Total finance lease liabilities
   $
944
     $
1,094
  
                 
Operating lease assets:
                
Operating lease ROU assets
   $
11,165
     $
11,475
  
                 
Operating lease liabilities:
                
Operating lease liability short-term
   $
1,254
     $
1,040
  
Operating lease liability long-term
    
10,851
      
11,214
  
Total operating lease liabilities
   $
12,105
     $
12,254
  
Lease, Cost [Table Text Block]
Lease costs
Consolidated Statements of Operations Classification
  
Three Months Ended April 30, 2020
    
Three Months Ended April 30, 2019
  
Finance Lease Costs
                  
Amortization of ROU assets
Cost of sales
   $
48
     $
51
  
Interest on lease liabilities
Interest expense
    
19
      
9
  
Operating lease costs
Cost of sales, SG&A expenses
    
612
      
551
  
Short-term lease costs (1)
Cost of sales, SG&A expenses
    
23
      
176
  
Sub-lease income
SG&A expenses
    
(20
 )    
(20
 )
Total Lease costs
   $
682
     $
767
  
Supplemental Cash Flow Information Related Leases [Table Text Block]
   
Three Months Ended April 30, 2020
    
Three Months Ended April 30, 2019
  
Cash paid for amounts included in the measurement of lease liabilities:
                
Financing cash flows from finance leases
   $
105
     $
50
  
Operating cash flows from finance leases
   $
19
      
9
  
Operating cash flows from operating leases
   $
954
      
618
  
   
Three Months Ended April 30, 2020
  
ROU Assets obtained in exchange for new lease obligations:
        
Finance leases liabilities
   $
-
  
Operating leases liabilities
    
27
  
Weighted-average Lease Terms and Discount Rates [Table Text Block]
   
April 30, 2020
  
Weighted-average remaining lease terms (in years):
        
Finance leases
    
2.8
  
Operating leases
    
8.5
  
         
Weighted-average discount rates:
        
Finance leases
    
6.4
 %
Operating leases
    
8.0
 %
Finance and Operating Lease, Liability, Maturity [Table Text Block]
Year:
  
Operating Leases
    
Finance Leases
  
For the nine months ended January 31, 2021
   $
3,287
     $
346
  
For the year ended January 31, 2022
    
2,325
      
314
  
For the year ended January 31, 2023
    
2,188
      
255
  
For the year ended January 31, 2024
    
2,020
      
137
  
For the year ended January 31, 2025
    
1,320
      
-
  
For the year ended January 31, 2026
    
1,144
      
-
  
                 
Thereafter
    
6,214
      
-
  
Total lease payments
    
18,498
      
1,052
  
Less: amount representing interest
    
(6,393
 )    
(108
 )
Total lease liabilities at April 30, 2020
   $
12,105
     $
944