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Note 10 - Leases (Tables)
 3 Months Ended
Apr. 30, 2019
Notes Tables  
Supplemental Balance Sheet Information Related to Leases [Table Text Block]
Operating and Finance leases:  
April 30, 2019
  
Finance leases assets:
        
Property and Equipment - gross
   $
836
  
Accumulated depreciation and amortization
    
(391
 )
Property and Equipment - net    
445
  
         
Finance lease liabilities:
        
Finance lease liability short-term
   $
208
  
Finance lease liability long-term
    
265
  
Total finance lease liabilities    
473
  
         
Operating lease assets:
        
Operating lease ROU assets
   $
10,323
  
         
Operating lease liabilities:
        
Operating lease liability short-term
   $
816
  
Operating lease liability long-term
    
9,493
  
Total operating lease liabilities    
10,309
  
Lease, Cost [Table Text Block]
Lease costs
Consolidated Statements of Operations Classification
  
Three Months Ended April 30, 2019
  
Finance Lease Costs
        
Amortization of ROU assets
Cost of sales
$
51
  
Interest on lease liabilities
Interest expense
  
9
  
Operating lease costs
Cost of sales, SG&A expenses
  
551
  
Short-term lease costs (1)
Cost of sales, SG&A expenses
  
176
  
Sub-lease income
SG&A expenses
  
(20
 )
Total Lease costs
 
$
767
  
Supplemental Cash Flow Information Related Leases [Table Text Block]
   
Three Months Ended April 30, 2019
  
Cash paid for amounts included in the measurement of lease liabilities:
        
Financing cash flows from finance leases
   $
50
  
Operating cash flows from finance leases
    
9
  
Operating cash flows from operating leases
    
618
  
   
April 30, 2019
  
ROU Assets obtained in exchange for new lease obligations:
        
Finance leases liabilities
   $
523
  
Operating leases liabilities
    
10,963
  
Weighted-average Lease Terms and Discount Rates [Table Text Block]
   
April 30, 2019
 
Weighted-average remaining lease terms:
        
Finance leases
    
2.3
years
Operating leases
    
10.1
years
         
Weighted-average discount rates:
        
Finance leases
    
7.0
%
Operating leases
    
9.1
%
Finance and Operating Lease, Liability, Maturity [Table Text Block]
Year:
  
Operating Leases
    
Finance Leases
  
For the nine months ended January 31, 2020
   $
1,373
     $
177
  
For the year ended January 31, 2021
    
1,804
      
234
  
For the year ended January 31, 2022
    
1,686
      
81
  
For the year ended January 31, 2023
    
1,605
      
20
  
For the year ended January 31, 2024
    
1,454
      
-
  
For the year ended January 31, 2025
    
1,064
      
-
  
Thereafter
    
6,656
      
-
  
Total lease payments
    
15,642
      
512
  
Less: amount representing interest
    
(5,333
 )    
(39
 )
Total lease liabilities at April 30, 2019
   $
10,309
     $
473