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Note 8 - Major Customers and Accounts Receivable
6 Months Ended
Jun. 30, 2014
Risks and Uncertainties [Abstract]  
Concentration Risk Disclosure [Text Block]

8.        MAJOR CUSTOMERS AND ACCOUNTS RECEIVABLE


For the three months ended June 30, 2014 and 2013, two customers accounted for 55%, and three customers accounted for 51% of revenue, respectively. For the six months ended June 30, 2014 and 2013, two customers accounted for 73%, and two customers accounted for 41% of revenue, respectively.


At June 30, 2014, two customers accounted for 56% of accounts receivable.  At December 31, 2013, one customer accounted for 50% of accounts receivable.