XML 65 R53.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Stock-Based Compensation (Details) - $ / shares | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Summary of options outstanding by exercise price range |  |  |
Options Exercisable, Weighted Average Exercise Price |  | $ 0.67 | $ 1.24
Stock Options [Member] |  |  |
Summary of options outstanding by exercise price range |  |  |
Options Outstanding, Number Outstanding at 12/31/17 | 1,756,000 |  |
Options outstanding, Weighted Average Remaining Contractual Life (years) | 2 years 2 months 5 days |  |
Options Outstanding, Weighted Average Exercise Price | $ 4.20 |  |
Options Exercisable, Number Exercisable at 12/31/17 | 1,746,000 |  |
Options Exercisable, Weighted Average Exercise Price | $ 4.21 |  |
Stock Options [Member] | Range one [Member] |  |  |
Summary of options outstanding by exercise price range |  |  |
Range of Exercise Price, Lower Range Limit | 1.44 |  |
Range of Exercise Price, Upper Range Limit | $ 3.50 |  |
Options Outstanding, Number Outstanding at 12/31/17 | 200,000 |  |
Options outstanding, Weighted Average Remaining Contractual Life (years) | 4 years 3 months 19 days |  |
Options Outstanding, Weighted Average Exercise Price | $ 2.85 |  |
Options Exercisable, Number Exercisable at 12/31/17 | 190,000 |  |
Options Exercisable, Weighted Average Exercise Price | $ 2.84 |  |
Stock Options [Member] | Range two [Member] |  |  |
Summary of options outstanding by exercise price range |  |  |
Range of Exercise Price, Lower Range Limit | 3.51 |  |
Range of Exercise Price, Upper Range Limit | $ 5.00 |  |
Options Outstanding, Number Outstanding at 12/31/17 | 1,426,000 |  |
Options outstanding, Weighted Average Remaining Contractual Life (years) | 1 year 10 months 6 days |  |
Options Outstanding, Weighted Average Exercise Price | $ 4.23 |  |
Options Exercisable, Number Exercisable at 12/31/17 | 1,426,000 |  |
Options Exercisable, Weighted Average Exercise Price | $ 4.23 |  |
Stock Options [Member] | Range three [Member] |  |  |
Summary of options outstanding by exercise price range |  |  |
Range of Exercise Price, Lower Range Limit | 5.01 |  |
Range of Exercise Price, Upper Range Limit | $ 6.21 |  |
Options Outstanding, Number Outstanding at 12/31/17 | 130,000 |  |
Options outstanding, Weighted Average Remaining Contractual Life (years) | 2 years 7 months 17 days |  |
Options Outstanding, Weighted Average Exercise Price | $ 5.98 |  |
Options Exercisable, Number Exercisable at 12/31/17 | 130,000 |  |
Options Exercisable, Weighted Average Exercise Price | $ 5.98 |  |

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

X
- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + 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 (g) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + 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)(iii) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + 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)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + 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 (g) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + 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)(iii) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
Name: | us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices. + 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)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
Name: | us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (e)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
Name: | us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=neond_RangeOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=neond_RangeTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=neond_RangeThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |