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Note 10 - Accrued Liabilities (Details) (USD $)
Dec. 31, 2013
Dec. 31, 2012
Dana Settlement [Member]
    
Note 10 - Accrued Liabilities (Details) [Line Items]    
Deferred Revenue Accrued Liabilities $ 8,657,000 $ 8,000,000
Maximum [Member]
    
Note 10 - Accrued Liabilities (Details) [Line Items]    
Accrued Operating Expenses Accrued Warranty Expenses Accrued Interest And Other Items 5.00%