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Note 10 - Prepaid Expenses and Other - Summary of Prepaid Expenses and Others (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Sep. 30, 2020
Sep. 30, 2019
Deposits for inventory $ 90   $ 54
Prepaid insurance 185   264
Dues and subscriptions 106   151
Trade shows and travel 104   103
Other 228   288
Prepaid expenses and other $ 713 $ 860 $ 860