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Note 8 - Accrued Expenses (Tables)
12 Months Ended
Dec. 31, 2016
Notes Tables  
Schedule of Accrued Liabilities [Table Text Block]
    December 31,
    2016   2015
Compensation   $
2,144
    $
2,107
 
Benefits / self-insurance reserve    
180
     
250
 
Paid time off    
990
     
965
 
Commissions payable    
260
     
319
 
Other    
1,124
     
1,418
 
    $
4,698
    $
5,059