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Summary Of Significant Accounting Policies (Depreciation Of Property, Plant And Equipment) (Details) | 12 Months Ended
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Dec. 31, 2012
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
Name: | silc_StraightLineDepreciationRate
Namespace Prefix: | silc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration