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Note 3 - Variable Interest Entities (Details) - Consolidated Balance Sheet-Myers (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Variable Interest Entity [Line Items]        
Cash and cash equivalents $ 1,872 $ 3,142 $ 16,371 $ 49,441
Contracts receivable, including retainage 77,245 70,815    
Other current assets 11,377 4,459    
Total current assets 114,485 164,758    
Property and equipment, net 93,683 102,308    
Other assets, net 10,030 6,651    
Goodwill 54,820 54,820 54,050 114,745
Total assets 273,018 331,510    
Accounts payable 61,599 47,796    
Total current liabilities 105,799 77,274    
Total long-term liabilities 34,425 26,929    
Variable Interest Entity, Primary Beneficiary [Member]
        
Variable Interest Entity [Line Items]        
Cash and cash equivalents 566 7,164    
Contracts receivable, including retainage 6,475 2,866    
Other current assets 7,964 1,214    
Total current assets 15,005 11,244    
Property and equipment, net 6,869 3,041    
Other assets, net 5      
Goodwill 1,501 1,501    
Total assets 23,380 15,786    
Accounts payable 8,361 4,627    
Other current liabilities 7,080 6,283    
Total current liabilities 15,441 10,910    
Other long-term liabilities 137      
Total long-term liabilities 137      
Total liabilities $ 15,578 $ 10,910