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Note 5 - Intangible Assets (Tables)
 3 Months Ended
Dec. 31, 2016
Notes Tables  
Schedule of Finite-Lived Intangible Assets [Table Text Block]
(In thousands)
 
Gross Amount
 
 
Accumulated Amortization
 
 
Net Book Value
 
As of December 31, 2016:
                        
Customer relationships
   $
6,500
    $
(775
 )   $
5,725
 
Developed technology and know-how
    
1,800
     
(214
 )    
1,586
 
Non-competition agreements
    
3,577
     
(2,114
 )    
1,463
 
    $
11,877
    $
(3,103
 )   $
8,774
 
                         
As of October 1, 2016:
                        
Customer relationships
   $
6,500
    $
(693
 )   $
5,807
 
Developed technology and know-how
    
1,800
     
(192
 )    
1,608
 
Non-competition agreements
    
3,577
     
(1,929
 )    
1,648
 
    $
11,877
    $
(2,814
 )   $
9,063