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Note 1 - Summary of Business and Significant Accounting Policies (Tables)
 12 Months Ended
Jan. 31, 2018
Notes Tables  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
   
2018
    
2017
  
   
(in thousands)
  
Accounts receivable
   $
85,281
     $
71,647
  
Less allowance for:
                
Doubtful accounts
    
(396
)
    
(1,090
)
Sales adjustments
    
(1,367
)
    
(1,116
)
Accounts receivable, net
   $
83,518
     $
69,441
  
Property, Plant and Equipment [Table Text Block]
   
2018
    
2017
  
   
(in thousands)
  
Buildings and building improvements
   $
32,444
     $
31,979
  
Computer equipment and software
    
17,312
      
16,027
  
Furniture and office equipment
    
7,632
      
6,748
  
Leasehold improvements
    
6,677
      
5,984
  
Land
    
3,850
      
3,850
  
Automobiles
    
54
      
54
  
     
67,969
      
64,642
  
Less accumulated depreciation and amortization
    
(37,561
)
    
(33,770
)
    $
30,408
     $
30,872
  
Changes in Property and Equipment [Table Text Block]
   
2018
    
2017
  
   
(in thousands)
  
Cost
                
Balance at February 1
   $
64,642
     $
64,925
  
Additions
    
3,720
      
3,267
  
Disposals
    
(1,874
)
    
(3,258
)
Impact of foreign currency translation
    
1,481
      
(292
)
Balance at January 31
    
67,969
      
64,642
  
                 
Accumulated depreciation
                
Balance at February 1
    
(33.770
)
    
(32,845
)
Depreciation
    
(4,562
)
    
(4,326
)
Disposals
    
1,719
      
3,211
  
Impact of foreign currency translation
    
(948
)
    
190
  
Balance at January 31
    
(37,561
)
    
(33,770
)
Property and equipment, net at January 31
   $
30,408
     $
30,872
  
Schedule of Capitalized Software Costs [Table Text Block]
   
2018
    
2017
  
   
(in thousands)
  
Capitalized software costs:
                
Acquired software technology
   $
—
     $
3,458
  
Capitalized software development costs
    
1,516
      
748
  
     
1,516
      
4,206
  
Less accumulated amortization
    
(526
)
    
(3,474
)
Capitalized software costs, net
   $
990
     $
732
  
Schedule of Goodwill [Table Text Block]
   
Gross
Carrying
Amount
    
Accumulated
Impairment
    
Goodwill,
Net
  
   
     (in thousands)
  
Balance at January 31, 2016
   $
26,253
     $
(15,608
)
   $
10,645
  
Impact of foreign currency translation
    
(87
)
    
—
      
(87
)
Balance at January 31, 2017
    
26,166
      
(15,608
)
    
10,558
  
Impact of foreign currency translation
    
465
      
—
      
465
  
Balance at January 31, 2018
   $
26,631
     $
(15,608
)
   $
11,023
  
Schedule of Finite-Lived Intangible Assets [Table Text Block]
   
January 31,
2017
  
   
(in thousands)
  
Amortizable intangible assets
        
Customer relationships
   $
2,721
  
Trade name
    
515
  
     
3,236
  
Less: accumulated amortization
    
(2,821
)
Net amortizable intangible assets
   $
415
  
Schedule of Other Nonoperating Expense, by Component [Table Text Block]
   
Years Ended January 31,
  
   
201
8
    
201
7
    
201
6
  
   
(in thousands)
  
Interest income
   $
(1,547
)
   $
(696
)
   $
(320
)
Interest
expense
    
669
      
670
      
712
  
Fore
ign exchange losses (gains)
    
2,466
      
180
      
(503
)
Change in fair value of interest rate swap
    
(377
)
    
(485
)
    
48
  
Other income, net
    
(77
)
    
(131
)
    
(302
)
Total other expense
(income), net
   $
1,134
     $
(462
)
   $
(365
 )
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
Years Ended January 31,
 
   
2018
    
2017
    
2016
  
   
(in thousands, except per share data)
  
Net (loss) income
   $
(9,065
)
   $
(15,450
)
   $
8,912
  
Less: dividends declared
    
(5,367
)
    
(5,301
)
    
(5,235
)
Undistributed net (loss) income
   $
(14,432
)
   $
(20,751
)
   $
3,677
  
                         
Net (loss) income per share
– Class A Common Stock
  
 
 
 
  
 
 
 
  
 
 
 
Dividends declared
   $
4,596
     $
4,531
     $
4,466
  
Allocation of undistributed net (loss) income
    
(12,358
)
    
(17,742
)
    
3,140
  
Net (loss) income attributable to Class A common stock
   $
(7,762
)
   $
(13,211
)
   $
7,606
  
                         
Weighted average shares of Class A common stock outstanding
—
basic
    
15,942
      
15,715
      
15,466
  
Weighted average potential shares of Class A common stock
    
—
      
—
      
758
  
Weighted average shares of Class A common stock and potential common shares outstanding
—
diluted
    
15,942
      
15,715
      
16,224
  
                         
Basic net (loss) income per Class A common share
   $
(0.49
)
   $
(0.84
)
   $
0.49
  
Diluted net (loss) income per Class A common share
   $
(0.49
)
   $
(0.84
)
   $
0.47
  
Net (loss) income per share
– Class B Common Stock
  
 
 
 
  
 
 
 
  
 
 
 
Dividends declared
   $
771
     $
770
     $
769
  
Allocation of undistributed net (loss) income
    
(2,074
)
    
(3,009
)
    
537
  
Net (loss) income attributable to Class B common stock
   $
(1,303
)
   $
(2,239
)
   $
1,306
  
                         
Weighted average shares of Class B common stock outstanding
—
basic
    
3,213
      
3,206
      
3,201
  
Weighted average potential shares of Class B common stock
    
—
      
—
      
82
  
Weighted average shares of Class B common stock and potential common shares outstanding
—
diluted
    
3,213
      
3,206
      
3,283
  
                         
Basic net (loss) income per Class B common share
   $
(0.41
)
   $
(0.70
)
   $
0.41
  
Diluted net (loss) income per Class B common share
   $
(0.41
)
   $
(0.70
)
   $
0.40
  
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
   
Years Ended January 31,
  
   
2018
    
2017
    
2016
  
   
(in thousands)
  
Class A
    
3,236
      
2,985
      
528
  
Class B
    
380
      
378
      
99