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Note 18 - Commitments and Contingencies (Details) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Note 18 - Commitments and Contingencies (Details) [Line Items]    
Letters of Credit Outstanding, Amount $ 1,300,000 $ 693,000
Payments to Acquire Property, Plant, and Equipment 1,105,000 $ 559,000
Land [Member]    
Note 18 - Commitments and Contingencies (Details) [Line Items]    
Purchase Obligation, Due in Next Twelve Months 543,000  
Payments to Acquire Property, Plant, and Equipment $ 20,000