Concentration of Risk and Enterprise Wide Disclosures

3 Months Ended

Mar. 31, 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 March 31, 2017 and December 31, 2016, respectively:



	March 31, 2017				December 31, 2016
Federal Government	$	5,967	5	%	$	5,542	4	%
State Governments	3,406		3	%	9,302		7	%
Local Governments	15,185		13	%	20,886		16	%
Private Companies	89,560		79	%	96,673		73	%
Total receivables	$	114,118	100	%	$	132,403	100	%

At March 31, 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 months ended March 31, 2017 and 2016, respectively:



	Three months ended March 31,
	2017		%		2016		%
Federal	$	19,731	14	%	$	4,156	3	%
State	12,019		9	%	5,367		4	%
Local	23,827		17	%	19,677		15	%
Private	83,180		60	%	100,423		78	%
Total contract revenues	$	138,757	100	%	$	129,623	100	%

In the three months ended March 31, 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.