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Note 13 - Significant Risks and Uncertainties
12 Months Ended
Dec. 31, 2014
Risks and Uncertainties [Abstract]  
Concentration Risk Disclosure [Text Block]

Note 13 Significant Risks and Uncertainties


Cash and Cash Equivalents


The Company places most of its temporary cash investments with financial institutions, which from time to time may exceed the Federal Deposit Insurance Corporation limit. The amount atrisk at December 31, 2014 and at December 31, 2013 was $10,216,263 and $9,834,765, respectively.


Sales Concentrations


Revenue to a single customer in any one year can exceed 10.0% of our total sales. One customer represented 50.2% and 23.7% respectively, of our annual revenues in fiscal years 2014 and 2013. We are not dependent on any single customer, and the loss of any key customer would have to be replaced by others, as we have previously, or our inability to do so may have a material adverse effect on our business and financial condition.


Export sales to unaffiliated customers represented approximately 20.2% and 27.3% of sales for the years ended December 31, 2014 and 2013, respectively. Export sales in both 2014 and 2013 were primarily to customers in Europe and Asia. All contracts are denominated in U.S. dollars. The Company does not enter into any foreign exchange contracts.