Consolidated Statements of Changes in Shareholders' Equity and Comprehensive Income (USD $)	3 Months Ended		12 Months Ended
	Oct. 31, 2012	Oct. 29, 2011	Jul. 31, 2012
Balance	$ 52,757,541
Net income	543,096	1,405,267
Foreign currency translation adjustments	116,992	(188,583)
Cash dividends paid	0	0	(2,000,000)
Unrealized investment gain, net	40,616	(222)
Purchase of additional noncontrolling interests	0	2,289
Balance	52,985,855		52,757,541
Balance (in shares)	149,808
Common Stock [Member] | Class A [Member]
Balance	26,851	26,851	26,851
Balance (in shares)	2,685,151	2,685,151	2,685,151
Net income	0		0
Foreign currency translation adjustments	0		0
Cash dividends paid			0
Unrealized investment gain, net	0		0
Repurchase of Class A common stock			0
Issuance of stock under stock award plan			0
Share-based compensation expense	0		0
Tax impact of share based compensation			0
Sale of subsidiary shares to noncontrolling interests			0
Distributions to noncontrolling interests	0		0
Purchase of additional noncontrolling interests	0		0
Purchase of additional noncontrolling interests (in shares)	0		0
Stock award plan forfeitures	0		0
Balance	26,851		26,851
Balance (in shares)	2,685,151		2,685,151
Common Stock [Member] | Class B [Member]
Balance	17,087	17,087	17,087
Balance (in shares)	1,708,574	1,708,574	1,708,574
Net income	0		0
Foreign currency translation adjustments	0		0
Cash dividends paid			0
Unrealized investment gain, net	0		0
Repurchase of Class A common stock			0
Issuance of stock under stock award plan			0
Share-based compensation expense	0		0
Tax impact of share based compensation			0
Sale of subsidiary shares to noncontrolling interests			0
Distributions to noncontrolling interests	0		0
Purchase of additional noncontrolling interests	0		0
Purchase of additional noncontrolling interests (in shares)	0		0
Stock award plan forfeitures	0		0
Balance	17,087		17,087
Balance (in shares)	1,708,574		1,708,574
Capital in Excess of Par Value [Member]
Balance	19,751,992	19,983,029	19,983,029
Net income	0		0
Foreign currency translation adjustments	0		0
Cash dividends paid			0
Unrealized investment gain, net	0		0
Repurchase of Class A common stock			0
Issuance of stock under stock award plan			(716,662)
Share-based compensation expense	127,992		731,583
Tax impact of share based compensation			105,988
Sale of subsidiary shares to noncontrolling interests			0
Distributions to noncontrolling interests	0		0
Purchase of additional noncontrolling interests	(3,793)		(351,946)
Stock award plan forfeitures	0		0
Balance	19,876,191		19,751,992
Retained earnings [Member]
Balance	29,534,783	30,797,763	30,797,763
Net income	242,527		773,579
Foreign currency translation adjustments	0		0
Cash dividends paid			(2,036,559)
Unrealized investment gain, net	0		0
Repurchase of Class A common stock			0
Issuance of stock under stock award plan			0
Share-based compensation expense	0		0
Tax impact of share based compensation			0
Sale of subsidiary shares to noncontrolling interests			0
Distributions to noncontrolling interests	0		0
Purchase of additional noncontrolling interests	0		0
Stock award plan forfeitures	0		0
Balance	29,777,310		29,534,783
Accumulated Other Comprehensive Income (loss) [Member]
Balance	711,842	1,527,189	1,527,189
Net income	0		0
Foreign currency translation adjustments	132,736		(871,476)
Cash dividends paid			0
Unrealized investment gain, net	30,044		17,597
Repurchase of Class A common stock			0
Issuance of stock under stock award plan			0
Share-based compensation expense	0		0
Tax impact of share based compensation			0
Sale of subsidiary shares to noncontrolling interests			0
Distributions to noncontrolling interests	0		0
Purchase of additional noncontrolling interests	0		38,532
Stock award plan forfeitures	0		0
Balance	874,622		711,842
Treasury Stock [Member]
Balance	(1,897,032)	(2,317,515)	(2,317,515)
Balance (in shares)	149,531	190,724	190,724
Net income	0		0
Foreign currency translation adjustments	0		0
Cash dividends paid			0
Unrealized investment gain, net	0		0
Repurchase of Class A common stock			(363,050)
Repurchase of Class A common stock (in shares)			22,825
Issuance of stock under stock award plan			716,662
Issuance of stock under stock award plan (in shares)			(62,099)
Share-based compensation expense	0		0
Tax impact of share based compensation			0
Sale of subsidiary shares to noncontrolling interests			0
Distributions to noncontrolling interests	0		0
Purchase of additional noncontrolling interests	0		66,871
Purchase of additional noncontrolling interests (in shares)			(5,208)
Stock award plan forfeitures	0		0
Stock award plan forfeitures (in shares)	277		3,289
Balance	(1,897,032)		(1,897,032)
Balance (in shares)			149,531
Noncontrolling Interest [Member]
Balance	4,612,018	3,923,429	3,923,429
Net income	300,569		2,266,171
Foreign currency translation adjustments	(15,744)		124,455
Cash dividends paid			0
Unrealized investment gain, net	10,572		0
Repurchase of Class A common stock			0
Issuance of stock under stock award plan			0
Share-based compensation expense	0		0
Tax impact of share based compensation			0
Sale of subsidiary shares to noncontrolling interests			41,634
Distributions to noncontrolling interests	(566,587)		(1,123,896)
Purchase of additional noncontrolling interests	(30,002)		(619,775)
Stock award plan forfeitures	0		0
Balance	$ 4,310,826		$ 4,612,018