Note 7 - Inventories - Schedule of Inventory (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020
Raw materials	$ 5,449	$ 5,220
Finished goods	842	841
Work in process	877	456
Inventories, gross	7,168	6,517
Reserve for obsolescence	(752)	(568)
Inventories, net	$ 6,416	$ 5,949

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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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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