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Note 1 - Summary of Business and Significant Accounting Policies (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
 3 Months Ended 9 Months Ended 12 Months Ended 9 Months Ended 6 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2014
Dec. 31, 2013
Sep. 30, 2014
Myers & Sons Construction L.P. [Member]
Sep. 30, 2014
Minimum [Member]
Jun. 30, 2014
Maximum [Member]
Sep. 30, 2014
Maximum [Member]
Note 1 - Summary of Business and Significant Accounting Policies (Details) [Line Items]              
Ownership Interest In Joint Venture   50.00%          
Owenership Interest In Subsidiary   50.00%   50.00%      
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Percentage       50.00%      
Contract Completion Term         12 months 36 months  
Estimated Construction Revenues, Before Tax (in Dollars) $ 4.5 $ 0.4          
Estimated Construction Revenue Per Diluted Share (in Dollars per share) $ 0.24 $ 0.02          
Contract Receivable Discounted Percentage   4.25%          
Interest Revenue (Expense), Net (in Dollars) 0.1 0.3          
Mortgage Loans on Real Estate (in Dollars) 0.1 0.1 0.2        
Mortgage Loans on Real Estate, Interest Rate   3.50% 3.50%        
Notes Payable, Noncurrent (in Dollars) $ 2.6 $ 2.6          
Debt Instrument, Term         3 years   5 years
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum   3.12%          
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum   6.29%