Concentration of Risk and Enterprise Wide Disclosures

6 Months Ended

Jun. 30, 2017

Concentration of Risk and Enterprise Wide Disclosures

Accounts receivable include amounts billed to governmental agencies and private customers and do not bear interest. Balances billed to customers but not paid pursuant to retainage provisions generally become payable upon contract completion and acceptance by the owner. The table below presents the concentrations of current receivables (trade and retainage) at June 30, 2017 and December 31, 2016, respectively:



	June 30, 2017				December 31, 2016
Federal Government	$	5,996	5	%	$	5,542	4	%
State Governments	4,314		4	%	9,302		7	%
Local Governments	20,183		17	%	20,886		16	%
Private Companies	89,608		74	%	96,673		73	%
Total receivables	$	120,101	100	%	$	132,403	100	%

At June 30, 2017 and December 31, 2016 no single customer accounted for more than 10% of total current receivables.

Additionally, the table below represents concentrations of contract revenue by type of customer for the three and six months ended June 30, 2017 and 2016, respectively:



	Three months ended June 30,								Six months ended June 30,
	2017		%		2016		%		2017		%		2016		%
Federal	$	18,360	13	%	$	7,776	6	%	$	38,092	14	%	$	11,932	4	%
State	12,706		9	%	10,462		7	%	24,726		9	%	15,829		6	%
Local	20,731		15	%	22,470		16	%	44,556		16	%	42,147		16	%
Private	85,623		63	%	99,593		71	%	168,803		61	%	200,016		74	%
Total contract revenues	$	137,420	100	%	$	140,301	100	%	$	276,177	100	%	$	269,924	100	%

In the three and six months ended June 30, 2017 and 2016, no single customer generated more than 10% of total contract revenues.

The Company does not believe that the loss of any one of its customers would have a material adverse effect on the Company or its subsidiaries and affiliates since no single specific customer sustains such a large portion of receivables or contract revenue over time.

In addition, the concrete construction segment primarily purchases concrete from select suppliers. The loss of one of these suppliers could adversely impact short-term operations.