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Note 10 - Line of Credit and Long-Term Debt (Detail) - The Company's long-term obligations mature in future years as follows (in thousands): (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
2013       $ 73    
2014     73      
2015   73        
2016 24,055          
$ 24,274       $ 24,274 $ 836