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Note 7 - Debt (Details) - Future Maturities of Remaining Borrowings (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Future Maturities of Remaining Borrowings [Abstract]    
2013 July through December $ 278  
2014 59  
2015 566  
2016 4,872  
2017 26  
2018 and thereafter 70  
Gross long-term borrowings 5,871  
Less: discounts on long-term borrowings (1,501) (48)
Total commitment, net 4,370 2,549
Less: portion classified as current (305) (756)
Long-term borrowings, net $ 4,065 $ 1,793