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Note 16 - Customers

12 Months Ended

Dec. 31, 2012

Segment Reporting Disclosure [Text Block]

16.

Customers

The following table shows contract revenues generated from the Company’s customers that accounted for more than 10% of revenues (dollars in thousands):

	Years Ended December 31,
	2012						2011					2010
	Amount			%			Amount		%			Amount		%
Texas Department of Transportation (“TxDOT”)		$	*		*	%	$	75,818		15.1	%	$	95,198		20.7	%
Utah Department of Transportation (“UDOT”)			100,658		16.0			144,398		28.8			120,492		26.2
California Department of Transportation (“Caltrans”)			94,171		15.0			*		*			*		*

*Represents less than 10% of revenues

At December 31, 2012, the North Texas Tollway Authority (“NTTA”) owed $8.8 million to the Company, which is greater than 10% of contract receivables. At December 31, 2011, UDOT owed $8.8 million to the Company, which is greater than 10% of contract receivables. At December 31, 2010, TxDOT ($10.8 million), UDOT ($10.1 million), and the Utah Transit Authority ($9.6 million) each owed balances to the Company greater than 10% of contract receivables.