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DISCONTINUED OPERATIONS (Details 1) (USD $)
Apr. 30, 2014
Apr. 30, 2013
ASSETS    
Accounts receivable, net of allowance $ 3,351,881 $ 4,223,321
Costs and estimated earnings in excess of billings on uncompleted contracts 616,858 819,714
Prepaid expenses and other current assets 33,073 109,774
Total current assets held for sale 4,001,812 5,152,809
PROPERTY AND EQUIPMENT, net 342,884 526,817
OTHER INTANGIBLE ASSETS, net 0 250,632
OTHER ASSETS 30,046 30,704
Total other assets held for sale 372,930 808,153
Total assets held for sale 4,374,742 5,960,962
LIABILITIES    
Current portion of loans payable 26,921 20,152
Accounts payable and accrued expenses 1,425,586 1,727,506
Billings in excess of costs and estimated earnings on uncompleted contracts 345,108 298,342
Total current liabilities held for sale 1,797,615 2,046,000
Loans payable, net of current portion 88,404 66,964
Total liabilities $ 1,886,019 $ 2,112,964