NOTE 13 —Entity Level Information

Segment Information—The Company operates in one reporting segment. Operating segments are defined as components of an enterprise about which separate financial information is evaluated regularly by the chief operating decision maker, who is the chief executive officer, in deciding how to allocate resources and assessing performance. The Company’s chief operating decision maker allocates resources and assesses performance based upon discrete financial information at the consolidated level.

The following table summarizes the revenue by region based on ship-to destinations for the three months ended March 31, 2019 and 2018:

Long-lived assets located in the United States and Asia Pacific region were $1,690 and $465 and $2,013 and $393 as of March 31, 2019 and December 31, 2018, respectively.

The composition of revenues for the three months ended March 31, 2019 and 2018 is follows:

Concentrations of Credit Risk—The Company’s product revenues are concentrated in the technology industry, which is highly competitive and rapidly changing. Significant technological changes in the industry or customer requirements, or the emergence of competitive products with new capabilities or technologies, could adversely affect the Company’s consolidated operating results. Financial instruments that potentially subject the Company to credit risk consist primarily of cash and cash equivalents and accounts receivable. Cash and cash equivalents are deposited with high-quality, federally insured commercial banks in the United States and cash balances are in excess of federal insurance limits at March 31, 2019 and December 31, 2018. The Company generally does not require collateral or other security in support of accounts receivable. To reduce credit risk, management performs ongoing credit evaluations of its customers’ financial condition. The Company analyzes the need for reserves for potential credit losses and records allowances for doubtful accounts when necessary. The Company had allowances for such losses totaling approximately $7 and $11 at March 31, 2019 and December 31, 2018, respectively.

Receivables from three customers approximated 49%, 24%, and 16% at March 31, 2019 and two customers approximated 44% and 43% of total accounts receivable at December 31, 2018. Revenue from customers with concentration greater than 10% in the three months ended March 31, 2019 and 2018 accounted for approximately the following percentage of total revenues: