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Note 6 - Debt (Tables)
 9 Months Ended
Sep. 30, 2012
Credit Facility, Variable Interest Rate [Table Text Block]
Excess Availability
 
LIBOR Rate Plus
 
       
Greater than $10,000
    3.00 %
         
Greater than $6,000 but less than or equal to $10,000
    3.25 %
         
Greater than $3,000 but less than or equal to $6,000
    3.50 %