Consolidated Balance Sheets Unaudited (USD $)	Jan. 31, 2013	Jul. 31, 2012
Current assets:
Cash and cash equivalents	$ 9,863,490	$ 10,467,770
Investment securities available for sale	2,948,968	1,404,582
Contract receivables, net	51,649,264	61,568,443
Deferred income taxes	5,800,688	4,799,724
Income tax receivable	0	2,502,431
Other current assets	2,927,175	1,802,843
Total current assets	73,189,585	82,545,793
Property, building and equipment, net of accumulated depreciation, $23,658,297 and $22,584,958, respectively	11,831,210	12,112,078
Deferred income taxes	685,245	860,499
Other assets	1,984,791	1,993,785
Total assets	87,690,831	97,512,155
Current liabilities:
Accounts payable	7,765,179	11,492,602
Line of credit	6,758,538	12,309,335
Accrued payroll costs	7,953,932	7,529,728
Income taxes payable	322,099	0
Current portion of long-term debt and capital lease obligations	502,757	488,460
Billings in excess of revenue	6,688,299	8,281,919
Other accrued liabilities	3,668,800	3,932,588
Total current liabilities	33,659,604	44,034,632
Income taxes payable	194,023	194,023
Deferred income taxes	358,660	423,324
Long-term debt and capital lease obligations	280,901	102,635
Commitments and contingencies (see note #17)
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	19,844,245	19,751,992
Retained earnings	30,669,856	29,534,783
Accumulated other comprehensive income	1,042,905	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	49,802,711	48,145,523
Noncontrolling interests	3,394,932	4,612,018
Total shareholders' equity	53,197,643	52,757,541
Total liabilities and shareholders' equity	87,690,831	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