Note 7 - Leases (Tables)
 12 Months Ended
Jan. 31, 2020
Notes Tables  
Supplemental Balance Sheet Information Related to Leases [Table Text Block]
Operating and Finance leases:
  
January 31, 2020
  
Finance leases assets:
        
Property and Equipment - gross
   $
1,696
  
Accumulated depreciation and amortization
    
(551
 )
Property and Equipment - net
   $
1,145
  
         
Finance lease liabilities:
        
Finance lease liability short-term
   $
417
  
Finance lease liability long-term
    
677
  
Total finance lease liabilities
   $
1,094
  
         
Operating lease assets:
        
Operating lease ROU assets
   $
11,475
  
         
Operating lease liabilities:
        
Operating lease liability short-term
   $
1,040
  
Operating lease liability long-term
    
11,214
  
Total operating lease liabilities
   $
12,254
  
Lease, Cost [Table Text Block]
Lease costs
Consolidated Statements of Operations Classification
  
Year Ended January 31, 2020
  
Finance Lease Costs
          
Amortization of ROU assets
Cost of sales
   $
208
  
Interest on lease liabilities
Interest expense
    
58
  
Operating lease costs
Cost of sales, SG&A expenses
    
2,326
  
Short-term lease costs (1)
Cost of sales, SG&A expenses
    
425
  
Sub-lease income
SG&A expenses
    
(81
 )
Total Lease costs
   $
2,936
  
Supplemental Cash Flow Information Related Leases [Table Text Block]
   
Year Ended January 31, 2020
  
Cash paid for amounts included in the measurement of lease liabilities:
        
Financing cash flows from finance leases
   $
287
  
Operating cash flows from finance leases
    
58
  
Operating cash flows from operating leases
    
2,287
  
   
Three Months Ended January 31, 2020
  
ROU Assets obtained in exchange for new lease obligations:
        
Finance leases liabilities
   $
-
  
Operating leases liabilities
    
94
  
Weighted-average Lease Terms and Discount Rates [Table Text Block]
   
January 31, 2020
  
Weighted-average remaining lease terms (in years):
        
Finance leases
    
3.0
  
Operating leases
    
8.5
  
         
Weighted-average discount rates:
        
Finance leases
    
7.0
 %
Operating leases
    
8.2
 %
Finance and Operating Lease, Liability, Maturity [Table Text Block]
Year:
  
Operating Leases
    
Finance Leases
  
For the year ended January 31, 2021
   $
2,312
     $
487
  
For the year ended January 31, 2022
    
2,315
      
331
  
For the year ended January 31, 2023
    
2,180
      
269
  
For the year ended January 31, 2024
    
2,012
      
145
  
For the year ended January 31, 2025
    
1,319
      
-
  
Thereafter
    
7,358
      
-
  
Total lease payments
    
17,496
      
1,232
  
Less: amount representing interest
    
(5,242
 )    
(138
 )
Total lease liabilities at January 31, 2020
   $
12,254
     $
1,094
  
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
Year:
  
Operating Leases
    
Capital Leases
  
For the year ended January 31, 2020
   $
2,516
     $
241
  
For the year ended January 31, 2021
    
2,193
      
240
  
For the year ended January 31, 2022
    
2,149
      
82
  
For the year ended January 31, 2023
    
2,110
      
21
  
For the year ended January 31, 2024
    
1,979
      
-
  
Thereafter
    
8,997
      
-
  
Subtotal
    
19,944
      
584
  
Less Amount representing interest
    
-
      
(48
 )
Future minimum lease payments
   $
19,944
     $
536