Note I - Stockholders' Equity - Restricted Stock (Details) - Restricted Stock [Member] - $ / shares	12 Months Ended
Jun. 30, 2022	Jun. 30, 2021
The 2009 Omnibus Stock Incentive Plan [Member]
Nonvested, Shares (in shares)	61,324	197,650
Nonvested, weighted-average grant date fair value (in dollars per share)	$ 11.47	$ 11.06
Granted, Shares (in shares)	0	0
Granted, weighted-average grant date fair value (in dollars per share)	$ 0	$ 0
Vested, Shares (in shares)	(51,326)	(136,326)
Granted, weighted-average grant date fair value (in dollars per share)	$ 11.52	$ 10.88
Forfeited, Shares (in shares)	(8,332)	0
Forfeited, weighted-average grant date fair value (in dollars per share)	$ 10.88	$ 0
Nonvested, Shares (in shares)	1,666	61,324
Nonvested, weighted-average grant date fair value (in dollars per share)	$ 8.50	$ 11.47
Available for grant, Shares (in shares)	0	0
The 2020 Omnibus Stock Incentive Plan [Member]
Nonvested, Shares (in shares)	87,773	0
Nonvested, weighted-average grant date fair value (in dollars per share)	$ 16.81	$ 0
Granted, Shares (in shares)	135,850	91,773
Granted, weighted-average grant date fair value (in dollars per share)	$ 10.99	$ 16.81
Vested, Shares (in shares)	(25,896)	(4,000)
Granted, weighted-average grant date fair value (in dollars per share)	$ 16.81	$ 16.81
Forfeited, Shares (in shares)	(11,500)	0
Forfeited, weighted-average grant date fair value (in dollars per share)	$ 16.81	$ 0
Nonvested, Shares (in shares)	186,227	87,773
Nonvested, weighted-average grant date fair value (in dollars per share)	$ 12.56	$ 16.81
Available for grant, Shares (in shares)	472,377	608,227

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(ii)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ 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
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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