Note E - Other Comprehensive Income - Other Comprehensive (Loss) Income (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2022	Jun. 30, 2021
Balance	$ 80,083	$ 71,375
Balance	88,520	80,083
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Balance	(538)	(888)
OCI/OCL before reclassifications	17	337
Amounts reclassified from OCI	113	123
Tax effect of OCI activity	(36)	(110)
Net current period OCI/OCL	94	350
Balance	(444)	(538)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Balance	(23)	(295)
OCI/OCL before reclassifications	5,370	(2,817)
Amounts reclassified from OCI	(3,011)	3,173
Tax effect of OCI activity	(541)	(84)
Net current period OCI/OCL	1,818	272
Balance	1,795	(23)
Accumulated Gain (Loss), Net, Swap Derivative, Parent [Member]
Balance	0
OCI/OCL before reclassifications	454
Amounts reclassified from OCI	0
Tax effect of OCI activity	(106)
Net current period OCI/OCL	348
Balance	348	0
AOCI Attributable to Parent [Member]
Balance	(561)	(1,183)
OCI/OCL before reclassifications	5,841	(2,480)
Amounts reclassified from OCI	(2,898)	3,296
Tax effect of OCI activity	(683)	(194)
Net current period OCI/OCL	2,260	622
Balance	$ 1,699	$ (561)

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(g)(1)(ii))
-URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 55
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-URI https://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section S99
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-Subparagraph (SAB Topic 4.E)
-URI https://asc.fasb.org/extlink&oid=122038336&loc=d3e74512-122707

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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-Subparagraph (SX 210.5-02(29))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
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-URI https://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612

Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details