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Note 12 - Accrued Liabilities
 12 Months Ended
Dec. 31, 2015
Notes to Financial Statements  
Accrued Liabilities [Text Block]
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12
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Accrued Liabilities
 
Accrued liabilities consist of the following (in thousands):
 
 
 
December 31,
 
 
 
2015
 
 
2014
 
Salaries, wages, employment taxes and withholdings
   $ 2,226     $ 2,758  
Employee benefit plans
     1,312       1,437  
Accrued professional fees
     3,670       2,664  
Income, property and other taxes
     301       2,439  
Deferred revenue
     1,208       6,120  
Other
     2,944       3,357  
    $ 11,661     $ 18,775  
 
Included in other accrued liabilities are accrued operating expenses, accrued warranty expenses, accrued interest, and other items, none of which exceed 5% of total current liabilities.