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Summary of Significant Accounting Policies (Depreciation of Property, Plant and Equipment) (Details)	12 Months Ended
	Dec. 31, 2015
Machinery And Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Straight-line depreciation rate	15.00%
Machinery And Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Straight-line depreciation rate	33.00%
Office Furniture and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Straight-line depreciation rate	6.00%
Office Furniture and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Straight-line depreciation rate	33.00%
Leasehold Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Straight-line depreciation rate	10.00%
Leasehold Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Straight-line depreciation rate	20.00%

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- Definition

Straight-Line Depreciation Rate

+ References

No definition available.

+ Details

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Namespace Prefix:	silc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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X

- Details

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X

- Details

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X

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_OfficeEquipmentMember
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X

- Details

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Period Type: