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Note 14 - Significant Risks and Uncertainties
 12 Months Ended
Dec. 31, 2011
Concentration Risk Disclosure [Text Block]
Note 14 – 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 at risk at December 31, 2011 and at December 31, 2010 was approximately $3,859,843 and $4,249,090 respectively.

Sales Concentrations

Revenue to a single customer in any one year can exceed 10.0% of our total sales; however, we are not dependent on any single customer. In fiscal year 2011, one customer represented 43.2% and another customer represented 8.4% of our annual revenues. In fiscal year 2010, one customer represented 6.5% and another customer represented 5.5% of our annual revenues. None of these customers were the same from year to year.

Export sales to unaffiliated customers represented approximately 12% and 37% of sales for the years ended December 31, 2011 and 2010, respectively. Export sales in both 2011 and 2010 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.