Concentration of Risk and Enterprise Wide Disclosures

6 Months Ended

Jun. 30, 2015

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, 2015 and December 31, 2014, respectively:



	June 30, 2015				December 31, 2014
Federal Government	$	6,922	11	%	$	4,607	9	%
State Governments	389		1	%	476		1	%
Local Governments	20,052		32	%	13,927		26	%
Private Companies	35,319		56	%	33,778		64	%
Total receivables	$	62,682	100	%	$	52,788	100	%

At June 30, 2015, a private sector customer represented 12.9% of total trade receivables. At December 31, 2014, a private sector customer accounted for 14.0% of total trade receivables.

Additionally, the table below represents concentrations of revenue by type of customer for the three months and six months ended June 30, 2015 and 2014.



	Three months ended June 30,								Six months ended June 30,
	2015		%		2014		%		2015		%		2014		%
Federal	$	11,083	13	%	$	6,496	7	%	$	23,667	14	%	$	18,393	11	%
State	12,942		15	%	10,881		12	%	22,572		13	%	17,791		10	%
Local	30,015		35	%	20,586		23	%	51,306		31	%	34,092		20	%
Private	32,051		37	%	52,288		58	%	70,001		42	%	101,233		59	%
	$	86,091	100	%	$	90,251	100	%	$	167,546	100	%	$	171,509	100	%

In the three months ended June 30, 2015, a local port authority generated 15.1% of total contract revenues. In the three months ended June 30, 2014, two private customers generated 11.5% and 10.9%, respectively. In the six months ended June 30, 2015, a local port authority generated 11.4% of total contract revenues. In the six months ended June 30, 2014, two private customers generated 12.5% and 10.7% of total contract revenues, respectively.

The Company does not believe that the loss of any one of these 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.