1. General: Inventories: Schedule of Inventory (Details) - USD ($) $ in Thousands	Sep. 27, 2019	Dec. 31, 2018
Text Block [Abstract]
Raw Materials	$ 5,387	$ 5,979
Work-in-process	115	116
Finished goods	459	323
Reserve for obsolete inventory	(3,346)	(3,346)
Inventories, net	$ 2,615	$ 3,072

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 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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