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Note 6 - Valuation Accounts
 12 Months Ended
Dec. 31, 2017
Notes to Financial Statements  
Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]
6
.
VALUATION ACCOUNTS:
 
Valuation and allowance accounts include the following (in thousands):
 
   
 
Balance
Beginning
of Year
    
Net
Charged to
Costs and
Expenses
    
 
 
Net Write-
Offs
    
 
Balance
End
of Year
  
                                 
201
7
                                
Reserve for accounts receivable
   $
549
     $
625
     $
(558
 )   $
616
  
Reserve for warranty receivable
s
    
114
      
713
      
(617
 )    
210
  
Reserve for parts inventory
    
4,885
      
1,414
      
(69
 )    
6,230
  
Reserve for commercial vehicle inventory
    
5,102
      
5,997
      
(5,146
 )    
5,953
  
                                 
201
6
                                
Reserve for accounts receivable
   $
506
     $
1,415
     $
(1,372
 )   $
549
  
Reserve for warranty receivable
s
    
105
      
833
      
(824
 )    
114
  
Reserve for parts inventory
    
7,291
      
3,400
      
(5,806
 )    
4,885
  
Reserve for commercial vehicle inventory
    
6,541
      
9,623
      
(11,062
 )    
5,102
  
                                 
2015
                                
Reserve for accounts receivable
   $
639
     $
992
     $
(1,125
 )   $
506
  
Reserve for warranty receivable
s
    
140
      
1,677
      
(1,712
 )    
105
  
Reserve for parts inventory
    
5,067
      
4,215
      
(1,991
 )    
7,291
  
Reserve for commercial vehicle inventory
    
10,644
      
8,417
      
(12,520
 )    
6,541
  
 
Allowance for Doubtful Receivables
 
The Company sells a majority of its customer accounts receivable on a non-recourse basis to a
third
-party that is responsible for qualifying the customer for credit at the point of sale. If the
third
-party approves the customer for credit, then the
third
-party assumes all credit risk related to the transaction. For accounts receivable that the Company does
not
sell or that are sold with recourse to the Company, an allowance for doubtful receivables is provided after considering historical loss experience and other factors that might affect the collection of such accounts receivable.
 
The Company provides an allowance for uncollectible warranty receivables. The Company evaluates the collect
ability of its warranty claims receivable based on a combination of factors, including aging and correspondence with the applicable manufacturer. Management reviews the warranty claims receivable aging and adjusts the allowance based on historical experience. The Company records charge-offs related to warranty receivables after it is determined that a receivable will
not
be fully collected.
 
Inventory
 
The Company provides a reserve for obsolete and slow moving parts. The reserve is reviewed and, if necessary, adjustments are made on a quarterly basis. The Company relies on historical information to support its reserve. Once the inventory is written down, the Company does
not
reverse any reserve balance until the inventory is sold.
 
The valuation for new and used
commercial vehicle inventory is based on specific identification. A detail of new and used commercial vehicle inventory is reviewed and, if necessary, adjustments to the value of specific vehicles are made on a quarterly basis.