XML 40 R32.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Shareholders' Equity (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2016
Stockholders' Equity Note [Abstract] |
Schedule of assumptions used in estimation of grant date fair value of RSUs |
3. | The Company recognizes compensation expenses on these RSUs based on estimated grant date fair value, with the following assumptions:
|  | 2014 |  |  | 2015 |
Expected dividend yield |  |  | 2.06 | % |  |  | 3.22 | %
Termination rate |  |  | 4.35 | % |  |  | 0 | %
Schedule of assumptions used in estimation of grant date fair value of options |
2. | The Company recognizes compensation expenses on these options based on estimated grant date fair value using the Binomial option-pricing model with the following assumptions:
Average Risk-free interest rate(a) |  |  | 2.08 | %
Expected dividend yield |  |  | 2.09 | %
Average expected volatility(b) |  |  | 53.01 | %
Termination rate |  |  | 9 | %
Suboptimal factor(c) |  |  | 3.4 |
(a) | Risk-free interest rate represents risk free US$ zero-coupon US Government Bonds at time of grant.
(b) | Expected average volatility represents a weighted average standard deviation rate for the price of the Company's ordinary shares on the NASDAQ National Market.
(c) | Suboptimal factor represents the multiple of the increase in the market share price on the day of grant of the option which, should it come to pass, will lead to exercise of the option by the employee. It is the average suboptimal factor of the Company and similar companies.
2. | The Company recognizes compensation expenses on these options based on estimated grant date fair value using the Binomial option-pricing model with the following assumptions:
Average Risk-free interest rate(a) |  |  | 1.58 | %
Expected dividend yield |  |  | 2.42 | %
Average expected volatility(b) |  |  | 47.90 | %
Termination rate |  |  | 9 | %
Suboptimal factor(c) |  |  | 3.32 |
(a) | Risk-free interest rate represents risk free US$ zero-coupon US Government Bonds at time of grant.
(b) | Expected average volatility represents a weighted average standard deviation rate for the price of the Company's ordinary shares on the NASDAQ National Market.
(c) | Suboptimal factor represents the multiple of the increase in the market share price on the day of grant of the option which, should it come to pass, will lead to exercise of the option by the employee. It is the average suboptimal factor of the Company and similar companies.
Stock Option Summary |
F. | The following table summarizes information regarding stock options as at December 31, 2016:
|  |  | Options outstanding |  |  | Options exercisable |
|  |  |  |  |  | Weighted average |  |  |  |  |  | Weighted average |
|  |  |  |  |  | remaining |  |  |  |  |  | remaining |
Exercise price |  |  | Number |  |  | contractual life |  |  | Number |  |  | contractual life |
US$ |  |  | of options |  |  | (in years) |  |  | of options |  |  | (in years) |
15.28 |  |  |  | 66,775 |  |  |  | 3.7 |  |  |  | 66,775 |  |  |  | 3.7 |
26.91 |  |  |  | 86,990 |  |  |  | 6.6 |  |  |  | - |  |  |  | - |
33.27 |  |  |  | 20,499 |  |  |  | 9.3 |  |  |  | 6,833 |  |  |  | 9.3 |
28.38 |  |  |  | 91,741 |  |  |  | 7.4 |  |  |  | - |  |  |  | - |
|  |  |  | 266,005 |  |  |  |  |  |  |  | 73,608 |  |  |  |  |
Stock Option Activity |
G. | The stock option activity under the abovementioned plans is as follows:
|  |  |  |  |  |  |  | Weighted |
|  |  |  |  | Weighted |  |  | average |
|  | Number |  |  | average |  |  | grant date |
|  | of options |  |  | exercise price |  |  | fair value |
|  |  |  |  | US$ |  |  | US$ |
Balance at January 1, 2014 |  |  | 272,750 |  |  |  |  |  |  |
Exercised |  |  | (78,620 | ) |  |  | 17.19 |  |  |  | 7.70 |
Forfeited |  |  | (2,000 | ) |  |  | 15.28 |  |  |  | 6.54 |
Balance at December 31, 2014 |  |  | 192,130 |  |  |  |  |  |  |  |  |
Granted |  |  | 89,907 |  |  |  | 26.91 |  |  |  | 10.04 |
Exercised |  |  | (61,711 | ) |  |  | 15.28 |  |  |  | 6.54 |
Forfeited |  |  | (5,625 | ) |  |  | 24.07 |  |  |  | 9.19 |
Balance at December 31, 2015 |  |  | 214,701 |  |  |  |  |  |  |  |  |
Granted* |  |  | 116,455 |  |  |  | 29.34 |  |  |  | 10.96 |
Exercised |  |  | (62,269 | ) |  |  | 15.28 |  |  |  | 6.54 |
Forfeited |  |  | (2,882 | ) |  |  | 29.71 |  |  |  | 11.79 |
Balance at December 31, 2016 |  |  | 266,005 |  |  |  |  |  |  |  |  |
Exercisable at December 31, 2016 |  |  | 73,608 |  |  |  |  |  |  |  |  |
| * | In 2016 the Company granted in the aggregate, 116,455 options. Regarding the grant of 93,660 options, see Note 11E. Regarding the grant of 22,795 options, see Note 3B.
Schedule of Restricted Share Units activity |
The Restricted Share Units activity under the abovementioned plans is as follows:
|  |  |  |  | Weighted |
|  | Number of |  |  | average |
|  | Restricted |  |  | grant date |
|  | Share Units |  |  | fair value |
|  | US$ |  |  | US$ |
Balance at January 1, 2014 |  |  | - |  |  |  |
Granted |  |  | 74,000 |  |  |  | 46.07 |
Balance at December 31, 2014 |  |  | 74,000 |  |  |  |  |
Granted |  |  | 8,000 |  |  |  | 29.09 |
Vested |  |  | (4,000 | ) |  |  | 46.07 |
Balance at December 31, 2015 |  |  | 78,000 |  |  |  |  |
Vested |  |  | (35,000 | ) |  |  | 46.54 |
Balance at December 31, 2016 |  |  | 43,000 |  |  |  |  |
Summary of Allocation of the Stock-Based Compensation Expenses |
During 2014, 2015 and 2016, the Company recorded share-based compensation expenses. The following summarizes the allocation of the stock-based compensation expenses:
|  | Year ended December 31 |
|  | 2014 |  |  | 2015 |  |  | 2016 |
|  | US$ thousands |  |  | US$ thousands |  |  | US$ thousands |
Cost of sales |  |  | 124 |  |  |  | 150 |  |  |  | 180 |
Research and development costs |  |  | 340 |  |  |  | 455 |  |  |  | 504 |
Selling and marketing expenses |  |  | 366 |  |  |  | 502 |  |  |  | 366 |
General and administrative expenses |  |  | 436 |  |  |  | 806 |  |  |  | 500 |
|  |  | 1,266 |  |  |  | 1,913 |  |  |  | 1,550 |

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of restricted stock units. + References No definition available. + Details
Name: | silc_ScheduleOfShareBasedPaymentAwardRestrictedStockUnitsAwardValuationAssumptionsTableTextBlock
Namespace Prefix: | silc_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 + Details
Name: | us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_StockholdersEquityNoteAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration