Concentration of Risk and Enterprise Wide Disclosures

3 Months Ended

Mar. 31, 2019

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, 2019 and December 31, 2018, respectively:



	March 31, 2019				December 31, 2018
Federal Government	$	3,533	3	%	$	2,319	2	%
State Governments	509		—	%	916		1	%
Local Governments	39,053		33	%	30,187		28	%
Private Companies	75,769		64	%	74,953		69	%
Total receivables	$	118,864	100	%	$	108,375	100	%

At March 31, 2019 one customer in the local governments category accounted for 12% of total current receivables. At December 31, 2018, 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, 2019 and 2018, respectively:



	Three months ended March 31,
	2019		%		2018		%
Federal Government	$	10,277	7	%	$	13,023	10	%
State Governments	4,055		3	%	8,376		6	%
Local Government	44,430		31	%	23,230		17	%
Private Companies	84,343		59	%	92,214		67	%
Total contract revenues	$	143,105	100	%	$	136,843	100	%

In the three months ended March 31, 2019 and 2018, 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 segment primarily purchases concrete from select suppliers. The loss of one of these suppliers could adversely impact short-term operations.