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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2022	Jun. 30, 2021
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 0	$ 2
Common shares, par value	$ 0	$ 0
Common shares, authorized	50,000,000	50,000,000
Common shares, issued	3,596,131	3,645,660
Common shares, outstanding	3,596,131	3,645,660

X

- Definition

Amount of allowance for credit loss on accounts receivable, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Section S99
-Paragraph 1
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- Definition

Face amount per share of no-par value common stock.

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-SubTopic 10
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X

- Definition

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

+ References

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- Definition

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.

+ References

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

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