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NOTE 2 - SIGNIFICANT ACCOUNTING POLICIES (Tables)
 12 Months Ended
Dec. 31, 2016
NOTE 2 - SIGNIFICANT ACCOUNTING POLICIES (Tables) [Line Items]  
Schedule of Long-term Debt Instruments [Table Text Block]
The amendment changes the applicable margin rates for determining the interest rate payable on the loan as follows:

Total Leverage Ratio
 
Base Rate Margin
 
 
LIBOR Rate Margin
 
≤ 2.75:1
 
 
3.50
%
 
 
4.50
%
> 2.75:1 but ≤ 3.25:1
 
 
4.00
%
 
 
5.00
%
≥ 3.25:1
 
 
4.50
%
 
 
5.50
%
Allowance for Credit Losses on Financing Receivables [Table Text Block]
The following table summarizes the annual changes in our allowance for doubtful accounts:

Balance at December 31, 2014
  
$
120
  
Provision for doubtful accounts receivable
    
100
  
Write-off of uncollectible accounts receivable
    
(75
)
Balance at December 31, 2015
  
$
145
  
Provision for doubtful accounts receivable
    
265
  
Write-off of uncollectible accounts receivable
    
(72
)
Balance at December 31, 2016
  
$
338
  
Amended Credit Agreement [Member]  
NOTE 2 - SIGNIFICANT ACCOUNTING POLICIES (Tables) [Line Items]  
Schedule of Long-term Debt Instruments [Table Text Block]
We amended our Credit Agreement in March 2016. Under this amendment, we expanded our overall credit facility by $12,500 to $29,188. This includes a $26,188 term facility which is due on March 21, 2019 and a $3,000 revolving credit facility. The amendment also changed the applicable margin rates for determining the interest rate payable on the loan as follows:

Total Leverage Ratio
  
Base Rate Margin
    
LIBOR Rate Margin
  
≤ 2.75:1
    
3.50
%
    
4.50
%
> 2.75:1 but ≤ 3.25:1
    
4.00
%
    
5.00
%
≥ 3.25:1
    
4.50
%
    
5.50
%