Concentration of Risk and Enterprise Wide Disclosures

6 Months Ended

Jun. 30, 2016

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, 2016 and December 31, 2015, respectively:



	June 30, 2016				December 31, 2015
Federal Government	$	2,177	2	%	$	4,230	5	%
State Governments	3,439		3	%	1,274		1	%
Local Governments	17,085		17	%	16,650		18	%
Private Companies	80,892		78	%	71,244		76	%
Total receivables	$	103,593	100	%	$	93,398	100	%

At June 30, 2016 and December 31, 2015 no single customer accounted for more than 10% of total current receivables.

Additionally, the table below represents concentrations of revenue by type of customer for the three and six months ended June 30, 2016 and 2015, respectively:



	Three months ended June 30,								Six months ended June 30,
	2016		%		2015		%		2016		%		2015		%
Federal	$	7,776	6	%	$	11,083	13	%	$	11,932	4	%	$	23,667	14	%
State	10,462		7	%	12,942		15	%	15,829		6	%	22,572		13	%
Local	22,470		16	%	30,015		35	%	42,147		16	%	51,306		31	%
Private	99,593		71	%	32,051		37	%	200,016		74	%	70,001		42	%
Total contract revenues	$	140,301	100	%	$	86,091	100	%	$	269,924	100	%	$	167,546	100	%

In the three and six months ended June 30, 2016, no single customer generated more than 10% of total contract revenues. In the three and six months ended June 30, 2015, a local port authority generated 15.1% and 11.4%, respectively, 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 commercial concrete construction segment primarily purchases concrete from select suppliers. The loss of one of these suppliers could adversely impact short-term operations.