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COSTS AND ESTIMATED EARNINGS ON UNCOMPLETED CONTRACTS (Tables)
12 Months Ended
Apr. 30, 2013
Costs and Estimated Earnings On Uncompleted Contracts  
Schedule of Costs and Estimated Earnings on Uncompleted Contracts
Costs and estimated earnings in excess of billings on uncompleted contracts”, represents revenue recognized in excess of amounts billed. The liability, “Billings in excess of costs and estimated earnings on uncompleted contracts”, represents billings in excess of revenue recognized. Costs and estimated earnings on uncompleted contracts consist of the following at April 30:
 
 
 
April 30, 2013
 
April 30, 2012
 
Costs incurred on uncompleted contracts
 
$
74,554,932
 
$
76,682,610
 
Provision for loss on uncompleted contracts
 
 
(23,376)
 
 
(1,886,896)
 
Estimated contract profit
 
 
2,730,745
 
 
2,242,232
 
 
 
 
77,262,301
 
 
77,037,946
 
Less: billings to date
 
 
77,755,947
 
 
79,291,760
 
Total
 
$
(493,646)
 
$
(2,253,814)
 
 
 
 
 
 
 
 
 
Costs and estimated earnings in excess of billings on uncompleted
    contracts
 
$
1,148,855
 
$
1,340,379
 
Billings in excess of costs and estimated earnings on uncompleted
    contracts
 
 
(1,642,501)
 
 
(3,594,193)
 
Total
 
$
(493,646)
 
$
(2,253,814)