Inventories: Schedule of Inventory, Current (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2018
Details
Finished goods			$ 1,446	$ 1,708
Work-in-process			1,387	1,022
Raw materials			3,471	4,183
Total	$ 6,304	$ 6,913	$ 6,304	$ 6,913

Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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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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