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Note 4 - Contracts in Progress (Tables)
9 Months Ended
Sep. 30, 2014
Contractors [Abstract]  
Schedule of Cost and Estimated Earnings In Excess of Billings [Table Text Block]
   

September 30, 2014

   

December 31, 2013

 
                 

Costs incurred on contracts in progress

  $ 3,110,152     $ 1,807,628  

Estimated earnings

    3,376,244       1,229,038  
      6,486,396       3,036,666  

Billings to date

    (4,446,081 )     (1,711,587 )
    $ 2,040,314     $ 1,325,079  

Costs and estimated earnings in excess of billings on contracts in progress

  $ 2,584,838     $ 1,577,969  
                 

Billings in excess of costs and estimated earnings on contracts in progress

  $ (544,524 )   $ (252,890 )