The element represents line of credit percentage of eligible inventory.

No definition available.

Name:	nanx_LineOfCreditPercentageOfEligibleInventory
Namespace Prefix:	nanx_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of reference rate used for variable rate of debt instrument.

+ References

No definition available.

+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

Name:	us-gaap_DebtInstrumentMaturityDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ 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 210.5-02.19(b),22(b))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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

- Definition

Description of the terms of a credit facility arrangement. Terms typically include interest rate, collateral required, guarantees required, repayment requirements, and restrictions on use of assets and activities of the entity.

+ References

+ Details

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

- Definition

Date the credit facility terminates, in YYYY-MM-DD format.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityExpirationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

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.

+ References

No definition available.

+ Details

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

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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

- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 55
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
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-Section S99
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-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

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-Name Accounting Standards Codification
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(13))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

+ Details

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

- Details

Name:	us-gaap_ShortTermDebtTypeAxis=us-gaap_LetterOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=nanx_LibertyvilleBankAndTrustMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=nanx_LibertyvilleBankAndTrustOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=nanx_BeachcorpLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=nanx_BeachcorpLLCOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=nanx_BeachcorpLLCTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=nanx_BeachcorpLLCThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=nanx_StrandlerLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=nanx_TermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=nanx_StrandlerLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=nanx_BusinessLoanAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=nanx_BeachcorpLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=nanx_TermLoanAndTheRevolverFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=nanx_InventoryFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Notes and lines of credit consist of the following: (Details) - USD ($) $ in Thousands						1 Months Ended	12 Months Ended
	Jan. 28, 2022	Apr. 21, 2021	Dec. 23, 2020	Mar. 23, 2020	Nov. 16, 2018	Jul. 31, 2014	Dec. 31, 2022	Dec. 31, 2021	Sep. 08, 2020
Letter of Credit [Member]
Line of Credit Facility [Line Items]
Letter of credit and related promissory note						$ 30
Debt Instrument, Description of Variable Rate Basis						prime rate	prime rate
Debt Instrument, Basis Spread on Variable Rate						1.00%	1.00%
Libertyville Bank and Trust [Member]
Line of Credit Facility [Line Items]
Line of credit facility, description							Libertyville Bank & Trust
Line of Credit Facility, Commitment Fee Percentage							8.50%
Available							$ 30	$ 30
Line of Credit Facility, Maximum Borrowing Capacity
Libertyville Bank and Trust One [Member]
Line of Credit Facility [Line Items]
Line of credit facility, description							Libertyville Bank & Trust
Line of Credit Facility, Commitment Fee Percentage							8.50%
Available							$ 500	500
Line of Credit Facility, Maximum Borrowing Capacity
Beachcorp, LLC [Member]
Line of Credit Facility [Line Items]
Line of credit facility, description							Beachcorp, LLC
Line of Credit Facility, Commitment Fee Percentage							5.25%
Available								3,467
Line of Credit Facility, Maximum Borrowing Capacity								1,351
Beachcorp, LLC One [Member]
Line of Credit Facility [Line Items]
Line of credit facility, description							Beachcorp, LLC
Line of Credit Facility, Commitment Fee Percentage							5.25%
Available								1,000
Line of Credit Facility, Maximum Borrowing Capacity								$ 1,000
Beachcorp, LLC Two [Member]
Line of Credit Facility [Line Items]
Line of credit facility, description							Beachcorp, LLC
Line of Credit Facility, Commitment Fee Percentage							8.25%
Available							$ 4,392
Line of Credit Facility, Maximum Borrowing Capacity							$ 4,282
Beachcorp, LLC Three [Member]
Line of Credit Facility [Line Items]
Line of credit facility, description							Beachcorp, LLC
Line of Credit Facility, Commitment Fee Percentage							8.25%
Available							$ 4,000
Line of Credit Facility, Maximum Borrowing Capacity							$ 3,000
Strandler, LLC [Member]
Line of Credit Facility [Line Items]
Line of credit facility, description							Strandler, LLC
Line of Credit Facility, Commitment Fee Percentage							8.25%
Available							$ 1,000
Line of Credit Facility, Maximum Borrowing Capacity							$ 1,000
Term Loan [Member] \| Strandler, LLC [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Description of Variable Rate Basis	prime rate
Debt Instrument, Basis Spread on Variable Rate	0.75%
Debt Instrument, Maturity Date	Mar. 31, 2024
Term Loan [Member] \| Business Loan Agreement [Member] \| Beachcorp, LLC [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 1,000			$ 500
Debt Instrument, Interest Rate, Stated Percentage					8.25%
Debt Instrument, Maturity Date		Mar. 31, 2022			Dec. 31, 2020
Revolving Credit Facility [Member] \| Business Loan Agreement [Member] \| Beachcorp, LLC [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 8,000	$ 6,000	$ 4,000		$ 2,000				$ 2,750
Debt Instrument, Description of Variable Rate Basis					prime rate
Debt Instrument, Basis Spread on Variable Rate					3.00%
Line of Credit Facility, Expiration Date	Mar. 31, 2024	Mar. 31, 2023			Mar. 31, 2020
Revolving Credit Facility [Member] \| Business Loan Agreement [Member] \| Beachcorp, LLC [Member] \| Minimum [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Interest Rate, Stated Percentage					8.25%
Term Loan and The Revolver Facility [Member] \| Business Loan Agreement [Member] \| Beachcorp, LLC [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Description of Variable Rate Basis	prime rate	prime rate
Debt Instrument, Basis Spread on Variable Rate	0.75%	2.00%
Debt Instrument, Maturity Date			Mar. 31, 2022	Mar. 31, 2021
Inventory Facility [Member] \| Business Loan Agreement [Member] \| Beachcorp, LLC [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 4,000
Debt Instrument, Description of Variable Rate Basis	prime rate
Debt Instrument, Basis Spread on Variable Rate	0.75%
Debt Instrument, Maturity Date	Mar. 31, 2024
Line of Credit Percentage of Eligible inventory	50.00%