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Note E - Leases (Tables) | 3 Months Ended
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Sep. 30, 2021
Notes Tables |
Lease, Cost [Table Text Block] |
Supplemental Cash Flows Information |  | Three Months Ended September 30, 2021 |  |  | Three Months Ended September 30, 2020 |
Cash paid for amounts included in the measurement of operating lease liabilities |  | $ | 811 |  |  | $ | 820 |

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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 + Details
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Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration