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Accumulated Other Comprehensive Income (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jan. 31, 2016	Jan. 31, 2015	Jan. 31, 2016	Jan. 31, 2015
Accumulated Other Comprehensive Income: [Abstract]
Beginning balance, net of tax effect	$ 176,629	$ 171,574	$ 196,033	$ 129,412
Other comprehensive income, net of tax effect:
Unrealized gains (loss) on available-for-sale securities	(51,050)	(22,823)	(81,454)	52,339
Tax effect	17,000	10,000	28,000	(23,000)
Unrealized gains (loss) on available-for-sale securities, net of tax effect	(34,050)	(12,823)	(53,454)	29,339
Amounts reclassified from accumulated other comprehensive income, net of tax effect:
Ending balance, net of tax effect	$ 142,579	$ 158,751	$ 142,579	$ 158,751

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- Definition

Accumulated Other Comprehensive Income [Abstract]

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- Definition

Accumulated appreciation or loss, net of tax, in value of the total of available-for-sale securities at the end of an accounting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669686-108580

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Amount before tax and reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities.

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Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities.

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Amount of tax expense (benefit) before reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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