STOCKHOLDERS' EQUITY (Details 1) - $ / shares	9 Months Ended	12 Months Ended
Sep. 30, 2025	Dec. 31, 2024
Equity Option [Member]
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise Price	$ 1.10	$ 1.02
Outstanding Number of Options	3,913,617	3,071,635
Weighted Average Remaining Life In Years	6 years 1 month 9 days	7 years 3 months 3 days
Excercisable Number of Options	2,449,922
0.89
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise Price	$ 0.89
Outstanding Number of Options	2,181,208
Weighted Average Remaining Life In Years	7 years 9 months 3 days
Excercisable Number of Options	1,118,568
0.94
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise Price	$ 0.94
Outstanding Number of Options	581,250
Weighted Average Remaining Life In Years	3 years 2 months 12 days
Excercisable Number of Options	581,250
0.66
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise Price	$ 0.66
Outstanding Number of Options	90,620
Weighted Average Remaining Life In Years	3 years 11 months 26 days
Excercisable Number of Options
2.95
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise Price	$ 2.95
Outstanding Number of Options	185,000
Weighted Average Remaining Life In Years	4 years 2 months 26 days
Excercisable Number of Options	125,000
3.25
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise Price	$ 3.25
Outstanding Number of Options	130,000
Weighted Average Remaining Life In Years	2 years 9 months 18 days
Excercisable Number of Options	130,000
1.15
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise Price	$ 1.15
Outstanding Number of Options	430,435
Weighted Average Remaining Life In Years	4 years 9 months 21 days
Excercisable Number of Options	180,000
0.96
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise Price	$ 0.96
Outstanding Number of Options	315,104
Weighted Average Remaining Life In Years	4 years 11 months 1 day
Excercisable Number of Options	315,104

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(ii)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

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

- Definition

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 718
-SubTopic 10
-Subparagraph (e)(1)
-Name Accounting Standards Codification
-Paragraph 2
-Section 50
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_StockOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=nxl_Range01Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=nxl_Range02Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=nxl_Range03Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=nxl_Range04Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=nxl_Range05Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=nxl_Range06Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=nxl_Range07Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: