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Subsequent Events (Details) - Jul. 28, 2015 - Global Share Incentive Plan (2013) [Member] - Subsequent Event [Member] - $ / shares	Total
Subsequent Events [Line Items]
Options granted	89,907
Exercise price per share of each stock option	$ 26.91
Percentage fall in closing price of ordinary shares for expiry of stock option	50.00%
Closing price to determine expiration date	$ 13.46

X

- Definition

Condition for Expiration.

+ References

No definition available.

+ Details

Name:	silc_ConditionForExpiration
Namespace Prefix:	silc_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The percentage fall in closing price of ordinary shares for expiry of stock option.

+ References

No definition available.

+ Details

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

X

- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

Name:	us-gaap_SubsequentEventLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_PlanNameAxis=silc_GlobalShareIncentivePlan2013Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: