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Note 9 - Prepaid Expenses and Other (Tables) | 6 Months Ended
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Mar. 31, 2022
Notes Tables |
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block] |
|  | March 31, |  |  | September 30, |
|  | 2022 |  |  | 2021 |
Deposits for inventory |  | $ | 201 |  |  | $ | 997 |
Prepaid insurance |  |  | 473 |  |  |  | 395 |
Dues and subscriptions |  |  | 233 |  |  |  | 213 |
Prepaid professional services |  |  | 79 |  |  |  | 158 |
Prepaid commissions |  |  | 159 |  |  |  | 82 |
Trade shows and travel |  |  | 143 |  |  |  | 95 |
Other |  |  | 191 |  |  |  | 315 |
|  | $ | 1,479 |  |  | $ | 2,255 |

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- Definition Tabular disclosure of the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer; the aggregate carrying amount of current assets, not separately presented elsewhere in the balance sheet; and other deferred costs. + References No definition available. + 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
Name: | us-gaap_TableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration