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Note 16 - Concentration of Risk and Enterprise-wide Disclosures (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]

		Years Ended December 31,
		2016								2015								2014
		Amount				%				Amount				%				Amount				%
California Department of Transportation (“Caltrans”)		$	88,627				12.8	%		$	96,470				15.5	%		$	97,637				14.5	%
Texas Department of Transportation (“TXDOT”)			85,224				12.4				84,129				13.5				*				*
Utah Department of Transportation (“UDOT”)			79,421				11.5				*				*				*				*

X

- Definition

Tabular disclosure of the extent of the entity's reliance on its major customers, if revenues from transactions with a single external customer amount to 10 percent or more of entity revenues, including the disclosure of that fact, the total amount of revenues from each such customer, and the identity of the reportable segment or segments reporting the revenues. The entity need not disclose the identity of a major customer or the amount of revenues that each segment reports from that customer. For these purposes, a group of companies known to the entity to be under common control is considered a single customer, and the federal government, a state government, a local government such as a county or municipality, or a foreign government is each considered a single customer.

+ References

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- References

No definition available.

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