Note 16 - Major Customers

For the three months ended March 31, 2017, two customers generated 10% or more of the Company’s revenue. Sales to these customers accounted for 67% of the Company’s revenue. As of March 31, 2017, the amount due from these customers was $397,523. This concentration makes the Company vulnerable to a near-term severe impact should the relationships be terminated.

For the three months ended March 31, 2016, two customers each generated more than 10% of the Company’s product revenue. In aggregate, sales to these customers accounted for 74% of the Company’s product revenue. As of March 31, 2016, the amount due from these two customers was $500,742.