Note 1 - General (Detail) - CRTS Acquisition - Proforma Information (USD $) In Thousands, except Share data	3 Months Ended			6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010	Jun. 30, 2011		Jun. 30, 2010
Revenues	$ 226,050		$ 233,529	$ 437,702		$ 436,048
Net income(1)	$ 6,676	[1]	$ 16,169	$ 8,728	[1]	$ 25,021
Diluted earnings per share (in Dollars per share)	$ 0.16		$ 0.41	$ 0.22		$ 0.64
Diluted shares (in Shares)	39,732,077		39,414,003	39,717,919		39,397,342

[1] CRTS recorded a slight loss during the three- and six-month periods ended June 30, 2011 due to the seasonality of the business as well as the delay of several large projects that are expected to be performed in the second half of 2011.