Consolidated Balance Sheets Unaudited (USD $)
Apr. 30, 2013
Jul. 31, 2012
Current assets:    
Cash and cash equivalents $ 11,958,764 $ 10,467,770
Investment securities available for sale 1,467,981 1,404,582
Contract receivables, net 50,346,278 61,568,443
Deferred income taxes 5,729,946 4,799,724
Income tax receivable 1,880,083 2,502,431
Other current assets 2,566,946 1,802,843
Total current assets 73,949,998 82,545,793
Property, building and equipment, net of accumulated depreciation, $24,220,809 and $22,584,958, respectively 11,481,737 12,112,078
Deferred income taxes 685,245 860,499
Other assets 2,006,902 1,993,785
Total assets 88,123,882 97,512,155
Current liabilities:    
Accounts payable 8,123,725 11,492,602
Lines of credit 6,519,041 12,309,335
Accrued payroll costs 8,578,534 7,529,728
Current portion of long-term debt and capital lease obligations 296,894 488,460
Billings in excess of revenue 6,924,217 8,281,919
Other accrued liabilities 3,905,749 3,932,588
Total current liabilities 34,348,160 44,034,632
Income taxes payable 194,023 194,023
Deferred income taxes 886,111 423,324
Long-term debt and capital lease obligations 282,074 102,635
Commitments and contingencies (see note #17) 0 0
Shareholders' equity:    
Preferred stock, par value $.01 per share; authorized - 2,000,000 shares; no shares issued 0 0
Capital in excess of par value 19,963,309 19,751,992
Retained earnings 30,229,262 29,534,783
Accumulated other comprehensive income 836,101 711,842
Treasury stock - Class A common, 77,724 and 84,730 shares; Class B common, 64,801 shares, at cost (1,798,233) (1,897,032)
Total Ecology and Environment, Inc. shareholders' equity 49,274,377 48,145,523
Noncontrolling interests 3,139,137 4,612,018
Total shareholders' equity 52,413,514 52,757,541
Total liabilities and shareholders' equity 88,123,882 97,512,155
Class A [Member]
    
Shareholders' equity:    
Common stock 26,851 26,851
Class B [Member]
    
Shareholders' equity:    
Common stock $ 17,087 $ 17,087