XML 94 R90.htm IDEA: XBRL DOCUMENT v2.4.0.8
Note 17 - Customers (Details) - Contract Revenues by Customers (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
TxDOT [Member]
      
Revenue, Major Customer [Line Items]      
Amount    [1]    [1] $ 75,818
Customer %    [1]    [1] 15.10%
UDOT [Member]
      
Revenue, Major Customer [Line Items]      
Amount    [1] 100,658 144,398
Customer %    [1] 16.00% 28.80%
Caltrans [Member]
      
Revenue, Major Customer [Line Items]      
Amount $ 92,159 $ 94,171    [1]
Customer % 16.60% 15.00%    [1]
[1] Represents less than 10% of revenues