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Employee Stock Options (Narrative) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified |
12 Months Ended | ||
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Proceeds from exercise of stock options | $ 102us-gaap_ProceedsFromStockOptionsExercised | $ 205us-gaap_ProceedsFromStockOptionsExercised | $ 31us-gaap_ProceedsFromStockOptionsExercised |
| Stock options [Member] | |||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Weighted-average grant-date fair value of options granted |
$ 0.99us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |
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| Total fair value of shares vested |
840us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |
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| Unrecognized compensation cost |
2,777us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |
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| Unrecognized compensation cost, period for recognition | 2 years 8 months 23 days | ||
| Intrinsic value of the options exercised |
495us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |
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| Equity Incentive Plan 2014 [Member] | |||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Vesting period | 4 years | ||
| Options granted |
5,007,191us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross / us-gaap_PlanNameAxis = ekso_EquityIncentivePlan2014Member |
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| Exercise price |
$ 1.31us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_PlanNameAxis = ekso_EquityIncentivePlan2014Member |
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| Non-employee [Member] | Stock options [Member] | |||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Options granted |
500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = ekso_NonEmployeeMember |
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| Non-employee [Member] | Stock options [Member] | Upon signing memorandum [Member] | |||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Vesting amount |
100,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = ekso_NonEmployeeMember / us-gaap_VestingAxis = us-gaap_ShareBasedCompensationAwardTrancheOneMember |
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| Non-employee [Member] | Stock options [Member] | Upon becoming an employee [Member] | |||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Vesting amount |
400,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = ekso_NonEmployeeMember / us-gaap_VestingAxis = us-gaap_ShareBasedCompensationAwardTrancheTwoMember |
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| 14 employees [Member] | Stock options [Member] | |||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Options granted |
857,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = ekso_FourteenEmployeesMember |
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| Exercise price |
$ 2.19us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = ekso_FourteenEmployeesMember |
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| Incremental compensation cost |
$ 411us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = ekso_FourteenEmployeesMember |
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| Minimum [Member] | Equity Incentive Plan 2014 [Member] | |||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Percentage of fair market value |
100.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent / us-gaap_PlanNameAxis = ekso_EquityIncentivePlan2014Member / us-gaap_RangeAxis = us-gaap_MinimumMember |
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| Minimum [Member] | Stockholders [Member] | Equity Incentive Plan 2014 [Member] | |||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Percentage of fair market value |
110.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent / us-gaap_PlanNameAxis = ekso_EquityIncentivePlan2014Member / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = ekso_StockholdersMember |
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| Minimum [Member] | 14 employees [Member] | Stock options [Member] | |||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Exercise price |
$ 3.57us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = ekso_FourteenEmployeesMember |
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| Maximum [Member] | Equity Incentive Plan 2014 [Member] | |||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Expiration period | 10 years | ||
| Maximum [Member] | Stockholders [Member] | Equity Incentive Plan 2014 [Member] | |||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Expiration period | 5 years | ||
| Maximum [Member] | 14 employees [Member] | Stock options [Member] | |||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Exercise price |
$ 6.50us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = ekso_FourteenEmployeesMember |
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| X | ||||||||||
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- Definition
Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Unrecognized cost of unvested options awarded to employees as compensation. No definition available.
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| X | ||||||||||
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- Definition
The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Gross number of share options (or share units) granted during the period. No definition available.
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- Definition
The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Number of options vested. No definition available.
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- Definition
An excess of the fair value of the modified award over the fair value of the award immediately before the modification. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Purchase price of common stock expressed as a percentage of its fair value. No definition available.
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- Definition
Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. No definition available.
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