Note 9 - Leases - Other Information (Details) |
Sep. 30, 2020 |
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| Weighted-average remaining lease term for operating leases (in years) (Year) | 2 years 36 days |
| Weighted-average discount rate for operating leases | 10.90% |
| X | ||||||||||
- Definition Weighted average discount rate for operating lease calculated at point in time. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Weighted average remaining lease term for 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/2003/role/exampleRef
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