Investments - Market Value, Cost, and Unrealized Gain or Loss on Investments (Detail) (USD $)	Mar. 31, 2013	Jun. 30, 2012
Marketable Securities [Line Items]
Trading, Market Value	$ 4,993,965	$ 5,216,139
Available-for-sale, Market Value	9,192,008	8,824,311
Total Investments	14,185,973	14,040,450
Trading, Cost	5,457,989	5,960,634
Available-for-sale, Cost	7,979,758	8,117,844
Total, Cost	13,437,747	14,078,478
Trading, Unrealized Gain (Loss)	(464,024)	(744,495)
Available-for-sale, Unrealized Gain (Loss)	1,212,250	706,467
Total, Unrealized Gain (Loss)	748,226	(38,028)
Available-for-sale, Unrealized holding gains on available-for-sale securities, net of tax	$ 800,085	$ 466,268

Available-for-sale, Unrealized holding gains (losses) on available-for-sale securities, net of tax

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- Definition

Marketable Securities total unrealized gain (loss).

+ References

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Trading and available for sale securities cost.

+ References

No definition available.

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- Definition

The unrealized gain (loss) on trading securities.

+ References

No definition available.

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- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

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- Definition

The net amount of gross unrealized gains (losses) for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.

+ References

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- Definition

Investments in debt and equity securities which are categorized neither as held-to-maturity nor trading and which are intended to be sold or mature more than one year from the balance sheet date or operating cycle, if longer. Such securities are reported at fair value; unrealized gains (losses) related to Available-for-sale Securities are excluded from earnings and reported in a separate component of shareholders' equity (other comprehensive income), unless the Available-for-sale security is designated as a hedge or is determined to have had an other than temporary decline in fair value below its amortized cost basis. All or a portion of the unrealized holding gain (loss) of an Available-for-sale security that is designated as being hedged in a fair value hedge is recognized in earnings during the period of the hedge, as are other than temporary declines in fair value below the cost basis for investments in equity securities and debt securities that an entity intends to sell or it is more likely than not that it will be required to sell before the recovery of its amortized cost basis. Other than temporary declines in fair value below the cost basis for debt securities categorized as Available-for-sale that an entity does not intend to sell and for which it is not more likely than not that the entity will be required to sell before the recovery of its amortized cost basis are bifurcated into credit losses and losses related to all other factors. Other than temporary declines in fair value below cost basis related to credit losses are recognized in earnings, and losses related to all other factors are recognized in other comprehensive income.

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents investment securities as of the balance sheet date which may include marketable securities, derivative financial instruments, and investments accounted for under the equity method.

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This item represents a parenthetical disclosure for the cost of securities classified as trading.

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No definition available.

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- Definition

Financial instruments that are bought and held principally for the purpose of selling them in the near term (thus held for only a short period of time, usually less than one year or the normal operating cycle, whichever is longer) or for debt and equity securities formerly categorized as available-for-sale or held-to-maturity which the entity held as of the date it opted to account for such securities at fair value. An enterprise may also categorize such a security as trading without the intent to sell it in the near term assuming the decision to categorize the security as trading occurred at acquisition.

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