Note 3 - Significant Risk and Uncertainty

3 Months Ended

Mar. 31, 2018

Notes to Financial Statements

Concentration Risk Disclosure [Text Block]

NOTE 3: SIGNIFICANT RISK AND UNCERTAINTY

Cash and cash equivalents

Financial instruments that potentially subject the Company to concentrations of credit risk consist of cash and cash equivalents and accounts receivable. The Company places its cash and cash equivalents with high credit-quality financial institutions and invests its excess cash primarily in savings accounts, treasury bills and money market instruments. Cash and cash investments at

March 31, 2018

and

December 31, 2017,

exceeded the Federal Deposit Insurance Corporation (“FDIC”) limit, by

$11,724,000

and

$12,198,000,

respectively.

Sales concentration

Revenue to a single customer in any

one

period can exceed

10%

of our total sales. During the

three

months ended

March 31, 2018

and

March 31, 2017,

one

customer represented approximately

48%

and

70%,

respectively, of our revenues.

Accounts receivable

The Company sells products and services to various companies across several industries in the ordinary course of business. The Company performs ongoing credit evaluations to assess the probability of accounts receivable collection based on a number of factors, including past transaction experience, evaluation of their credit history and review of the invoicing terms of the contract to determine the financial strength of its customers. The Company also maintains allowances for anticipated losses. At

March 31, 2018,

approximately

82%

of the accounts receivable balance was owed by

one

customer.