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CONSOLIDATED BALANCE SHEETS (Parentheticals) - $ / shares	Mar. 31, 2022	Jun. 30, 2021
Common Class A [Member]
Common stock; par value (in Dollars per share)	$ 0.025	$ 0.025
Common stock, shares authorized	28,000,000	28,000,000
Common stock, shares issued	13,866,913	13,866,913
Common stock, shares outstanding	12,931,609	12,967,960
Treasury stock, class A shares at cost; shares	935,304	898,953
Common Class B [Member]
Common stock; par value (in Dollars per share)	$ 0.025	$ 0.025
Common stock, shares authorized	4,500,000	4,500,000
Common stock, shares issued	0	0
Common Class C [Member]
Common stock; par value (in Dollars per share)	$ 0.025	$ 0.025
Common stock, shares authorized	3,500,000	3,500,000
Common stock, shares issued	2,068,635	2,068,635
Common stock, shares outstanding	2,068,635	2,068,635

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Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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