XML 62 R52.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Stockholders’ Equity (Details) - Schedule of preferred stock activities $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 USD ($) shares
Series B Preferred Stock [Member] |
Stockholders’ Equity (Details) - Schedule of preferred stock activities [Line Items] |
Balances |
Balances (in Shares) | shares |
Balances |
Issuance of Preferred Shares for cash (in Shares) | shares |
Issuance of Preferred Shares for cash |
Series C-2 Preferred Stock issued for repayment of short-term borrowings and accrued interest (in Shares) | shares |
Series C-2 Preferred Stock issued for repayment of short-term borrowings and accrued interest |
Conversion of Preferred Shares to common stock (in Shares) | shares |
Conversion of Preferred Shares to common stock |
Series C-1 Preferred Stock [Member] |
Stockholders’ Equity (Details) - Schedule of preferred stock activities [Line Items] |
Balances (in Shares) | shares |
Balances |
Balances (in Shares) | shares |
Balances |
Issuance of Preferred Shares for cash (in Shares) | shares | 365
Issuance of Preferred Shares for cash | $ 365
Series C-2 Preferred Stock issued for repayment of short-term borrowings and accrued interest (in Shares) | shares |
Series C-2 Preferred Stock issued for repayment of short-term borrowings and accrued interest |
Conversion of Preferred Shares to common stock (in Shares) | shares | (365)
Conversion of Preferred Shares to common stock | $ (365)
Series C-2 Preferred Stock [Member] |
Stockholders’ Equity (Details) - Schedule of preferred stock activities [Line Items] |
Balances (in Shares) | shares |
Balances |
Balances (in Shares) | shares |
Balances |
Issuance of Preferred Shares for cash (in Shares) | shares | 3,567
Issuance of Preferred Shares for cash | $ 3,567
Series C-2 Preferred Stock issued for repayment of short-term borrowings and accrued interest (in Shares) | shares | 517
Series C-2 Preferred Stock issued for repayment of short-term borrowings and accrued interest | $ 517
Conversion of Preferred Shares to common stock (in Shares) | shares | (4,084)
Conversion of Preferred Shares to common stock | $ (4,084)

X
- Definition Conversion of Preferred Shares to common stock. + References No definition available. + Details
Name: | neond_ConversionOfPreferredShareToCommonStock
Namespace Prefix: | neond_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of conversion of Preferred Shares to common stock. + References No definition available. + Details
Name: | neond_ConversionOfPreferredSharesToCommonStock
Namespace Prefix: | neond_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of issuance of Preferred Shares for cash. + References No definition available. + Details
Name: | neond_IssuanceOfPreferredSharesForCash
Namespace Prefix: | neond_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of preferred stock 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: | neond_IssuanceOfPreferredSharesForCashinDollars
Namespace Prefix: | neond_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of Series C-2 Preferred Stock issued for repayment of short-term borrowings and accrued interest. + References No definition available. + Details
Name: | neond_SeriesC2PreferredStockIssuedForRepaymentOfShorttermBorrowingsAndAccruedInteresti
Namespace Prefix: | neond_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of series preferred stock issued for repayment of short-term borrowings and accrued interest. + References No definition available. + Details
Name: | neond_StockIssuedDuringPeriiodSharesSeriesPreferredStockIssuedForRepaymentOfShorttermBorrowingsAndAccruedInterest
Namespace Prefix: | neond_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 + Details
Name: | us-gaap_PreferredStockSharesIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766 + Details
Name: | us-gaap_PreferredStockValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesBPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=neond_SeriesC1PreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=neond_SeriesC2PreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |