Note 1 - Basis of Presentation and Significant Accounting Policies - Inventory (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Sep. 30, 2022
Raw materials and supplies	$ 493	$ 507
Finished goods	2,423	1,062
Less: Obsolescence reserve	(102)	(107)
Inventory, Net	$ 2,814	$ 1,462

Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount of valuation reserve for inventory.

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