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Stock Options (Nonvested Option Activity) (Details) - $ / shares	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Stock Options [Abstract]
Non-vested (in shares)	1,313,166	1,272,584
Granted (in shares)	615,000	555,000
Vested (in shares)	(468,166)	(450,418)
Forfeited (in shares)		(64,000)
Non-vested (in shares)	1,460,000	1,313,166
Non-vested, weighted average grant date fair value (in dollars per share)	$ 1.26	$ 1.19
Granted, weighted average grant date fair value (in dollars per share)	1.12	1.26
Vested, weighted average grant date fair value (in dollars per share)	1.17	1.07
Forfeited, weighted average grant date fair value (in dollars per share)	0	1.39
Non-vested, weighted average grant date fair value (in dollars per share)	$ 1.23	$ 1.26

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Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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Number of non-vested options outstanding.

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Number of non-vested options forfeited.

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Weighted average grant-date fair value of non-vested options forfeited.

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Weighted average grant-date fair value of non-vested options outstanding.

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