Name:	neos_RelatedPartyMaximumSaleAndLeasebackTransactionAmount
Namespace Prefix:	neos_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The amortization period for the loss recognized in sale leaseback transaction.

No definition available.

Name:	neos_SaleLeasebackTransactionAmortizationPeriodForNetLossRecognized
Namespace Prefix:	neos_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Related to assets in a sale-leaseback transaction, the original value of the lease-buyout option liability for the lease which expired during the period..

No definition available.

Name:	neos_SaleLeasebackTransactionBuyoutOptionLiability
Namespace Prefix:	neos_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Related to assets in a sale-leaseback transaction, the original value of the assets for which the lease expired during the period.

No definition available.

Name:	neos_SaleLeasebackTransactionExpirationValue
Namespace Prefix:	neos_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Term of lease in sale leaseback transaction.

No definition available.

Name:	neos_SaleLeasebackTransactionLeaseTerm
Namespace Prefix:	neos_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

The number of tranches in sale-leaseback transaction.

No definition available.

Name:	neos_SaleLeasebackTransactionNumberOfTranches
Namespace Prefix:	neos_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Cumulative amount of gain recognized (out of deferred gain) as income or a reduction in rent expense.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 40
-Section 35
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=108788860&loc=d3e50609-112754

Name:	us-gaap_SaleLeasebackTransactionCumulativeGainRecognized1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The portion of the deferred gain that was recognized in the current period.

Name:	us-gaap_SaleLeasebackTransactionCurrentPeriodGainRecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The portion of the gain that will be recorded as income or a reduction in rent expense in future periods less amounts recognized in the current period.

Name:	us-gaap_SaleLeasebackTransactionDeferredGainNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of cash inflow before closing and debt issuance costs received by a seller-lessee in a sale-leaseback recognized in financing activities.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 40
-Section 55
-Paragraph 50
-URI http://asc.fasb.org/extlink&oid=82846721&loc=d3e51831-112757

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 40
-Section 55
-Paragraph 52
-URI http://asc.fasb.org/extlink&oid=82846721&loc=d3e51843-112757

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 40
-Section 55
-Paragraph 51
-URI http://asc.fasb.org/extlink&oid=82846721&loc=d3e51840-112757

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The financing cost related to leases that have been recorded under the deposit method, as a financing or as a capital leases in connection with the transaction involving the sale of property to another party and the lease of the property back to the seller.

No definition available.

Name:	us-gaap_SaleLeasebackTransactionImputedInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_SaleLeasebackTransactionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Name:	us-gaap_RelatedPartyTransactionAxis=neos_RelatedPartySaleLeasebackTransactionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_NonoperatingIncomeExpenseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_SaleLeasebackTransactionDescriptionAxis=neos_RelatedPartySaleLeasebackTransactionOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_SaleLeasebackTransactionDescriptionAxis=neos_SaleLeasebackTrancheFourMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_SaleLeasebackTransactionDescriptionAxis=neos_SaleLeasebackTrancheFiveMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: