Note 16 - Customer Concentration

12 Months Ended

Dec. 31, 2018

Notes to Financial Statements

Concentration Risk Disclosure [Text Block]

16. Customer Concentration

(a) Geographic Information

The Company operates within the United States.

(b) Major Customers

For the years ended

December 31, 2018,

2017

and

2016

no

one

individual Company customer accounted for more than

10%

of the Company’s total revenue.

(c) Concentration of Revenue

The composition of the Company’s

ten

largest customer’s changes periodically. For the years ended

December 

31,

2018,

2017

and

2016,

the Company’s

ten

largest customers represented

41.4%,

39.5%

and

40.6%

of HMS’ total revenue, respectively. Excluding those contracts that contain automatic renewal provisions or evergreen terms, the Company’s agreements with the

ten

current largest customers generally expire between

2019

and

2026.

In many instances, HMS provides services pursuant to agreements that

may

be renewed or subject to a competitive reprocurement process. Several of the Company’s contracts, including those with some of its largest customers,

may

be terminated for convenience.