Consolidated Statement of Cash Flows (USD $)	3 Months Ended
	Oct. 31, 2012	Oct. 29, 2011
Cash flows from operating activities:
Net income	$ 543,096	$ 1,405,267
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	583,288	440,837
Benefit for deferred income taxes	66,339	(197,076)
Share-based compensation expense	127,992	182,896
Tax impact of share-based compensation	0	105,988
Provision for contract adjustments	1,083,109	187,209
(Increase) decrease in:
- contract receivables	(43,886)	(832,932)
- other current assets	(1,213,383)	(583,483)
- income tax receivable	(259,384)	0
- other non-current assets	9,951	7,958
Increase (decrease) in:
- accounts payable	219,286	(1,121,380)
- accrued payroll costs	1,967,917	(826,593)
- income taxes payable	(536)	(162,297)
- billings in excess of revenue	(1,093,281)	621,753
- other accrued liabilities	(119,221)	(557,108)
Net cash provided by (used in) operating activities	1,871,287	(1,328,961)
Cash flows provided by (used in) investing activities:
Acquistion of noncontrolling interest of subsidiaries	(30,002)	(61,750)
Purchase of property, building and equipment	(549,926)	(975,657)
Change in accounts payable due to purchase of equipment	(610,192)	10,392
Sale (purchase) of investment securities, net	(1,599,636)	(434)
Net cash used in investing activities	(2,789,756)	(1,027,449)
Cash flows provided by (used in) financing activities:
Dividends paid	(1,018,783)	(1,028,881)
Proceeds from debt	0	251,427
Repayment of debt and capital lease obligations	(106,673)	(57,011)
Net proceeds from line of credit	2,200,000	2,500,000
Distributions to noncontrolling interests	(566,587)	(110,754)
Proceeds from sale of subsidiary shares to noncontrolling interests	0	41,634
Purchase of treasury stock	0	(363,050)
Net cash provided by financing activities	507,957	1,233,365
Effect of exchange rate changes on cash and cash equivalents	64,322	177,526
Net decrease in cash and cash equivalents	(346,190)	(945,519)
Cash and cash equivalents at beginning of period	10,467,770	8,529,842
Cash and cash equivalents at end of period	$ 10,121,580	$ 7,584,323