Note 13 - Major Customers and Accounts Receivable

3 Months Ended

Mar. 31, 2018

Notes to Financial Statements

Concentration Risk Disclosure [Text Block]

13. MAJOR CUSTOMERS AND ACCOUNTS RECEIVABLES

For the

three

months ended

March 31, 2018

and

2017,

two

customers accounted for

48%

of revenues and

three

customers accounted for

70%

of revenues, respectively.

Three

customers accounted for

53%

of current accounts receivable as of

March 31, 2018.

One

customer accounted for

100%

of non-current accounts receivable as of

March 31, 2018

and

December 31, 2017.

Based on prior history with this customer, the Company believes the amount is fully collectable, however, the Company has reserved

$1,000,000

which represents

57%

of the remaining balance owed under the contract, due to the length of time the receivable has been outstanding.  At

December 31, 2017,

one

customer accounted for

55%

of current accounts receivable.