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Segment and Revenue by Geography and by Major Customer - Summary of Property and Equipment by Geography (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Geographic Areas Long Lived Assets [Line Items]
Property, Plant and Equipment, Net	$ 2,741	$ 2,353	$ 2,585
Domestic (Israel)
Geographic Areas Long Lived Assets [Line Items]
Property, Plant and Equipment, Net	2,259	1,543	1,939
Taiwan
Geographic Areas Long Lived Assets [Line Items]
Property, Plant and Equipment, Net	199	344	349
China
Geographic Areas Long Lived Assets [Line Items]
Property, Plant and Equipment, Net	210	312
USA
Geographic Areas Long Lived Assets [Line Items]
Property, Plant and Equipment, Net	$ 73	151	290
Other
Geographic Areas Long Lived Assets [Line Items]
Property, Plant and Equipment, Net		$ 3	$ 7

X

- Definition

Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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