Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 70
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480794/715-70-50-1

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(ii)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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- Definition

Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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-SubTopic 10
-Subparagraph (e)(1)
-Name Accounting Standards Codification
-Paragraph 2
-Section 50
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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Employee Benefits - Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable (Details) - $ / shares	12 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Employee Benefits
Options Outstanding, Number	159,250	152,500	140,500	148,000
Options Outstanding, Weighted Average Exercise Price	$ 45.06	$ 42.76	$ 34.43	$ 39.63
Options Exercisable, Number	96,800	88,500	65,800
Options Exercisable, Weighted Average Exercise Price	$ 41	$ 39.51	$ 38.44
31 mo.
Employee Benefits
Weighted Average Remaining Contractual Life	19 months
Options Outstanding, Number	11,500
Options Outstanding, Weighted Average Exercise Price	$ 37.31
Options Exercisable, Number	11,500
Options Exercisable, Weighted Average Exercise Price	$ 37.31
42 mo.
Employee Benefits
Weighted Average Remaining Contractual Life	30 months
Options Outstanding, Number	11,500
Options Outstanding, Weighted Average Exercise Price	$ 34.35
Options Exercisable, Number	11,500
Options Exercisable, Weighted Average Exercise Price	$ 34.35
56 mo.
Employee Benefits
Weighted Average Remaining Contractual Life	44 months
Options Outstanding, Number	11,500
Options Outstanding, Weighted Average Exercise Price	$ 37.4
Options Exercisable, Number	11,500
Options Exercisable, Weighted Average Exercise Price	$ 37.4
67 mo.
Employee Benefits
Weighted Average Remaining Contractual Life	55 months
Options Outstanding, Number	20,000
Options Outstanding, Weighted Average Exercise Price	$ 34.91
Options Exercisable, Number	20,000
Options Exercisable, Weighted Average Exercise Price	$ 34.91
79 mo.
Employee Benefits
Weighted Average Remaining Contractual Life	67 months
Options Outstanding, Number	10,000
Options Outstanding, Weighted Average Exercise Price	$ 53.82
Options Exercisable, Number	8,000
Options Exercisable, Weighted Average Exercise Price	$ 53.82
85 mo.
Employee Benefits
Weighted Average Remaining Contractual Life	73 months
Options Outstanding, Number	7,500
Options Outstanding, Weighted Average Exercise Price	$ 46.59
Options Exercisable, Number	4,500
Options Exercisable, Weighted Average Exercise Price	$ 46.59
92 mo.
Employee Benefits
Weighted Average Remaining Contractual Life	80 months
Options Outstanding, Number	31,000
Options Outstanding, Weighted Average Exercise Price	$ 46.94
Options Exercisable, Number	18,600
Options Exercisable, Weighted Average Exercise Price	$ 46.94
99 mo.
Employee Benefits
Weighted Average Remaining Contractual Life	87 months
Options Outstanding, Number	3,500
Options Outstanding, Weighted Average Exercise Price	$ 40.28
Options Exercisable, Number	1,400
Options Exercisable, Weighted Average Exercise Price	$ 40.28
103 mo.
Employee Benefits
Weighted Average Remaining Contractual Life	91 years
Options Outstanding, Number	18,500
Options Outstanding, Weighted Average Exercise Price	$ 40.82
Options Exercisable, Number	7,400
Options Exercisable, Weighted Average Exercise Price	$ 40.82
116 mo.
Employee Benefits
Weighted Average Remaining Contractual Life	104 years
Options Outstanding, Number	12,000
Options Outstanding, Weighted Average Exercise Price	$ 60.42
Options Exercisable, Number	2,400
Options Exercisable, Weighted Average Exercise Price	$ 60.42
112 mo.
Employee Benefits
Weighted Average Remaining Contractual Life	112 years
Options Outstanding, Number	11,000
Options Outstanding, Weighted Average Exercise Price	$ 50.05
Options Exercisable, Weighted Average Exercise Price	$ 50.05
116 mo.
Employee Benefits
Weighted Average Remaining Contractual Life	116 months
Options Outstanding, Number	11,250
Options Outstanding, Weighted Average Exercise Price	$ 62.96
Options Exercisable, Weighted Average Exercise Price	$ 62.96