The total amount of discrete tax items due to new legislation which is included in the income tax expense (benefit).

No definition available.

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- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

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- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 6.I.Fact.4)
-URI http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

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- Definition

Tax year that remains open to examination under enacted tax laws, in CCYY format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319

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- Definition

Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319

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Note I - Income Taxes (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
Note I - Income Taxes (Details Textual) - USD ($)	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Effective Income Tax Rate Reconciliation, Percent, Total	6.00%	18.90%	3.70%	20.10%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			21.00%
Income Tax Expense (Benefit), Continuing Operations, Discrete Tax Items Due to Tax Act, Amount, Total	$ 74,000		$ 64,000
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ 0		$ 0
Domestic Tax Authority [Member]
Open Tax Year			2017 2018 2019 2020
State and Local Jurisdiction [Member]
Open Tax Year			2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
Foreign Tax Authority [Member] \| Swiss Federal Tax Administration (FTA) [Member]
Open Tax Year			2018 2019 2020