Consolidated Statements of Cash Flows Unaudited (USD $)	6 Months Ended
	Jan. 31, 2013	Jan. 31, 2012
Cash flows from operating activities:
Net income	$ 2,474,238	$ 2,708,342
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization expense	1,183,767	876,039
Benefit for deferred income taxes	(890,374)	(43,030)
Share-based compensation expense	255,985	379,860
Tax impact of share-based compensation	0	105,988
Gain on sale of assets	(9,100)	0
Provision for contract adjustments	(21,987)	81,090
Decrease (increase) in:
- contract receivables	10,292,264	5,375,266
- other current assets	(1,089,053)	(557,303)
- income tax receivable	2,502,431	(1,400,388)
- other non-current assets	12,596	(13,341)
(Decrease) increase in:
- accounts payable	(2,107,668)	(2,851,075)
- accrued payroll costs	343,709	(836,922)
- income taxes payable	321,911	(1,374,239)
- billings in excess of revenue	(1,694,637)	1,481,525
- other accrued liabilities	(302,702)	(946,090)
Net cash provided by (used in) operating activities	11,271,380	2,985,722
Cash flows provided by (used in) investing activities:
Acquistion of noncontrolling interest of subsidiaries	(577,272)	(817,549)
Purchase of property, building and equipment	(1,336,581)	(2,575,534)
(Purchase) sale of investment securities, net	(1,536,550)	119,888
Net cash used in investing activities	(3,450,403)	(3,273,195)
Cash flows provided by (used in) financing activities:
Dividends paid	(2,037,323)	(2,046,657)
Proceeds from debt	0	298,648
Repayment of debt and capital lease obligations	(230,050)	(637,955)
Net (payments on) proceeds from line of credit	(5,543,495)	6,500,000
Distributions to noncontrolling interests	(808,429)	(345,093)
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	(8,619,297)	3,447,527
Effect of exchange rate changes on cash and cash equivalents	194,040	82,516
Net decrease in cash and cash equivalents	(604,280)	3,242,570
Cash and cash equivalents at beginning of period	10,467,770	8,529,842
Cash and cash equivalents at end of period	9,863,490	11,772,412
Cash paid during the year for:
- Interest	179,573	156,877
- Income Taxes	284,285	3,203,308
Supplemental disclosure of non-cash items:
Dividends declared and not paid	1,018,783	1,028,881
Acquistion of noncontrolling interest of subsidiaries - Loan	212,401	795,856
Charge in accounts payable due to equipment purchases	$ 670,678	$ (10,392)