| Note 7 - Leases (Details Textual) | Mar. 31, 2023 | 
|---|---|
| Lessee, Operating Lease, Renewal Term (Year) | 10 years | 
| Minimum [Member] | |
| Lessee, Operating Lease, Term of Contract (Year) | 1 year | 
| Maximum [Member] | |
| Lessee, Operating Lease, Term of Contract (Year) | 13 years | 
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- Definition Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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| X | ||||||||||
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- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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- Details 
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- Details 
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