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Note 9 - Long-Term Debt (Tables)
3 Months Ended
Mar. 31, 2013
Schedule of Debt [Table Text Block]
   
Weighted
Average
Interest Rate
 
Maturities
 
3/31/13
   
12/31/12
 
           
(dollars in thousands)
 
Revolving Credit Facility, interest payable monthly
 
Variable,
0.9%
 
2013
  $     $  
                         
Unsecured term note payable to National, interest payable quarterly, principal payable at maturity
 
Variable,
2.8%
 
2018
    10,000       10,000  
              10,000       10,000  
Less current portion
                   
            $ 10,000     $ 10,000