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Costs and Estimated Earnings in Excess of Billings (Tables)
 6 Months Ended
Mar. 31, 2017
Text Block [Abstract]  
Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts

Costs and estimated earnings in excess of billings on uncompleted contracts as of March 31, 2017 and September 30, 2016 consist of the following:

 

     March 31, 2017      September 30, 2016  

Costs incurred on uncompleted contracts

    $ 14,498,000      $ 8,898,000  

Estimated earnings

      4,789,000        3,124,000  
  

 

 

     

 

 

  
     19,287,000        12,022,000  

Billings to date

      17,607,000        7,101,000  
  

 

 

     

 

 

  

Costs and estimated earnings in excess of billings

    $ 1,680,000      $ 4,921,000