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Leases (Details) - Schedule of future minimum payments under non-cancellable operating lease commitments $ in Thousands | Mar. 31, 2023 USD ($)
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Schedule of future minimum payments under non cancellable operating lease commitments (Abstract) |
2023 (remaining months) | $ 54
2024 | 53
Total | 107
Less imputed interest | (4)
Total lease liabilities | 103
Less current portion | (85)
Total | $ 18

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- Definition Present value of lessee's discounted obligation for lease payments from finance lease, classified as noncurrent. + References No definition available. + Details
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Namespace Prefix: | neon_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

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- Definition Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. + References No definition available. + Details
Name: | neon_OperatingLeasesFutureMinimumPaymentDue
Namespace Prefix: | neon_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | neon_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. + References No definition available. + Details
Name: | neon_OperatingsLeaseCurrentPortion
Namespace Prefix: | neon_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Total lease liabilities. + References No definition available. + Details
Name: | neon_TotalLeaseLiabilities
Namespace Prefix: | neon_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition The receivable or note face amount less the unamortized discount or premium. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -Publisher FASB -URI https://asc.fasb.org//1943274/2147482925/835-30-45-1A + Details
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