XML 91 R77.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Equity - Summary of Option Exercises between Cashless Net Exercises and Cash Exercises (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014
Equity [Abstract] |  |  |
Shares granted in net exercise of options |  |  | 33,938
Options forfeited in net exercise of options |  |  | 76,062
Total net exercise options |  |  | 110,000
Weighted average exercise price for net exercise options | [1] |  | $ 2.51
Options exercised for cash |  |  |
Weighted average exercise price for options exercised for cash |  |  |
[1] | All shares issued in connection with option exercises were newly issued shares.

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Options, Net Exercise in Period. + References No definition available. + Details
Name: | ACFN_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNetExerciseInPeriod
Namespace Prefix: | ACFN_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Options, Shares Forfeited in Net Exercise in Period. + References No definition available. + Details
Name: | ACFN_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsSharesForfeitedInNetExerciseInPeriod
Namespace Prefix: | ACFN_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises for Cash in Period, Weighted Average Exercise Price. + References No definition available. + Details
Name: | ACFN_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesForCashInPeriodWeightedAverageExercisePrice
Namespace Prefix: | ACFN_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Shares granted in net exercise of options. + References No definition available. + Details
Name: | ACFN_SharesGrantedInNetExerciseOfOptions
Namespace Prefix: | ACFN_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Value of stock issued as a result of the exercise of stock options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29-31) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
Name: | us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration