Inventories - Schedule of Inventories (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Oct. 01, 2018	Sep. 30, 2018
Inventory Disclosure [Abstract]
Raw materials and supplies	$ 5,477		$ 6,202
Work-in-process	3,203		6,626
Finished goods	3,264		5,441
Total inventories	$ 11,944	$ 11,727	$ 18,269

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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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Gross amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed.

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

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