Details of Certain Financial Statement Components and Supplemental Disclosures of Cash Flow Information and Non-Cash Activities - Components of Inventories (Detail) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Inventory Disclosure [Abstract]
Raw materials	$ 152,000	$ 161,000
Reserve for raw materials	0	0
Work-in-process	111,000	12,000
Reserve for work-in-process	0	0
Finished goods	0	0
Reserve for finished goods	0	0
Inventories, net	$ 263,000	$ 173,000

Finished Goods Inventory Reserves

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- Definition

Raw Materials Reserves

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- Definition

Work in Process Reserves

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- References

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- Definition

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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-Publisher FASB
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-Topic 210
-SubTopic 10
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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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