XML 43 R34.htm IDEA: XBRL DOCUMENT
v3.22.1

Stock-Based Compensation (Details) - USD ($) |  | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Aug. 12, 2021 | Dec. 29, 2021 | Dec. 29, 2020 | Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021 | Dec. 31, 2020
Stock-Based Compensation (Details) [Line Items] |  |  |  |  |  |  |
Common stock shares issued (in Shares) | 12,830 | 14,735 | 37,288 |  |  |  |
Market value, percentage | 30.00% | 30.00% | 30.00% |  |  |  |
Paid swedish social charges |  |  |  |  |  | $ 46,000 | $ 75,000
Percentage of shares issued |  |  |  |  |  | 30.00% | 30.00%
Stock-based compensation |  |  |  |  |  | $ 38,000 | $ 77,000
Stock-based compensation amortization |  |  |  | $ 39,000 | $ 23,000 |  |
Number of options outstanding (in Shares) |  |  |  | 2,500 |  |  |
Number of options vested |  |  |  | $ 0 |  |  |
Term of stock options, description |  |  |  | Stock options granted under the 2006, 2015 and 2020 Plans are exercisable over a maximum term of 10 years from the date of grant, vest in various installments over a one to four-year period and have exercise prices reflecting the market value of the shares of common stock on the date of grant. |  |  |
Minimum [Member] |  |  |  |  |  |  |
Stock-Based Compensation (Details) [Line Items] |  |  |  |  |  |  |
Future unearned bonus, percentage |  |  |  |  |  |  | 50.00%
Maximum [Member] |  |  |  |  |  |  |
Stock-Based Compensation (Details) [Line Items] |  |  |  |  |  |  |
Future unearned bonus, percentage |  |  |  |  |  |  | 67.00%
Employees [Member] |  |  |  |  |  |  |
Stock-Based Compensation (Details) [Line Items] |  |  |  |  |  |  |
Paid swedish social charges |  |  |  |  |  | $ 21,000 |
Percentage of shares issued |  |  |  |  |  | 30.00% |
Stock-based compensation |  |  |  |  |  | $ 25,000 |
2020 Plan [Member] |  |  |  |  |  |  |
Stock-Based Compensation (Details) [Line Items] |  |  |  |  |  |  |
Common stock shares issued (in Shares) |  |  |  | 750,000 |  |  |

X
- Definition Future unearned bonus, percentage. + References No definition available. + Details
Name: | neon_FutureUnearnedBonus
Namespace Prefix: | neon_
Data Type: | dtr:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Market value, percentage + References No definition available. + Details
Name: | neon_MarketValuePercentage
Namespace Prefix: | neon_
Data Type: | dtr:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of options outstanding. + References No definition available. + Details
Name: | neon_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicShareValue
Namespace Prefix: | neon_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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

X
- Definition Stock related cost percentage. + References No definition available. + Details
Name: | neon_StockRelatedCostPercentage
Namespace Prefix: | neon_
Data Type: | dtr:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Term of stock options description. + References No definition available. + Details
Name: | neon_TermOfStockOptionsDescription
Namespace Prefix: | neon_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_AllocatedShareBasedCompensationExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of expense for allocation of cost of intangible asset over its useful life directly used in production of good and rendering of service. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(b)(2)) -URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227 + Details
Name: | us-gaap_CostOfGoodsAndServicesSoldAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of cash paid during the reporting period for charges associated with the mergers. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (g) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3536-108585 + Details
Name: | us-gaap_PaymentsForMergerRelatedCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders. + References No definition available. + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesIssuedForServices
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_NumberOfEmployeesTotalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=neon_TwoThousandTwentyPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |