XML 55 R44.htm IDEA: XBRL DOCUMENT
v3.26.1

Digital Assets (Details) |  |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Mar. 12, 2025 USD ($) bitcoin $ / shares shares | Sep. 24, 2024 USD ($) | Mar. 31, 2026 USD ($) $ / shares shares | Mar. 31, 2025 USD ($) | Dec. 31, 2025 USD ($) | Dec. 31, 2023 USD ($) | Sep. 03, 2025 shares
Digital Assets [Line Items] |  |  |  |  |  |  |
Number of crypto units |  |  | 5,833 |  | 5,833 |  |
Total cost of digital assets (in Dollars) |  |  |  |  | $ 158,083,667 | $ 24,990,000 |
Unrealized loss (in Dollars) |  |  | $ 126,511,123 |  |  |  |
Unrealized gain on digital assets (in Dollars) |  |  |  | $ 245,311,156 |  |  |
Prepayment for digital assets (in Dollars) |  |  | 1,491,169 |  | $ 1,999,213 |  |
Purchase price (in Dollars) |  |  |  | $ 158,083,667 |  |  |
Purchase of warrants (in Shares) | shares |  |  |  |  |  |  | 34,686,744
Warrants (in Dollars) |  |  | 300,000,000 |  |  |  |
Market price per share (in Dollars per share) | $ / shares | $ 0.34 |  |  |  |  |  |
Total consideration for acquisition (in bitcoin) | bitcoin | 5,000 |  |  |  |  |  |
Consideration for acquisition amount (in Dollars) | $ 158,083,667 |  |  |  |  |  |
BTC [Member] |  |  |  |  |  |  |
Digital Assets [Line Items] |  |  |  |  |  |  |
Number of crypto units |  |  |  |  |  | 833 |
Unrealized gain on digital assets (in Dollars) |  |  | $ 206,568,695 |  |  |  |
Digital Assets [Member] |  |  |  |  |  |  |
Digital Assets [Line Items] |  |  |  |  |  |  |
Number of crypto units |  |  |  |  | 5,000 |  |
Unrealized gain on digital assets (in Dollars) |  |  |  |  | $ 333,079,818 |  |
BTC Trading Contract [Member] |  |  |  |  |  |  |
Digital Assets [Line Items] |  |  |  |  |  |  |
Number of crypto units |  |  | 6,000 |  |  |  |
Locked price for sale (in Dollars) |  |  | $ 30,000 |  |  |  |
BTC Seller [Member] |  |  |  |  |  |  |
Digital Assets [Line Items] |  |  |  |  |  |  |
Number of crypto units |  |  | 833 |  |  |  |
Crypto Asset, Other [Member] |  |  |  |  |  |  |
Digital Assets [Line Items] |  |  |  |  |  |  |
Number of crypto units |  |  | 1,000 |  |  |  |
BTC Purchase [Member] |  |  |  |  |  |  |
Digital Assets [Line Items] |  |  |  |  |  |  |
Number of crypto units |  |  | 1,000 |  |  | 1,000 |
Prepayment for digital assets (in Dollars) |  |  |  |  |  | $ 12,125,500 |
Prepayment, percentage |  |  |  |  |  | 40.00% |
Amended and Restated BTC Trading Contract [Member] | BTC [Member] |  |  |  |  |  |  |
Digital Assets [Line Items] |  |  |  |  |  |  |
Number of crypto units |  | 5,167 |  |  |  |  |
BTC Trading Contract [Member] |  |  |  |  |  |  |
Digital Assets [Line Items] |  |  |  |  |  |  |
Purchase price (in Dollars) |  | $ 30,000 |  |  |  |  |
Amended BTC Transaction [Member] |  |  |  |  |  |  |
Digital Assets [Line Items] |  |  |  |  |  |  |
Number of crypto units | 5,000 |  | 5,000 |  |  |  |
Prepayment for digital assets (in Dollars) |  |  | $ 12,125,500 |  |  |  |
Warrant [Member] |  |  |  |  |  |  |
Digital Assets [Line Items] |  |  |  |  |  |  |
Purchase of warrants (in Shares) | shares | 294,117,647 |  | 294,117,647 |  |  |  |
Nominal exercise price per share (in Dollars per share) | $ / shares |  |  |  |  |  |  |
Exercise period |  |  | 5 years |  |  |  |
Warrant [Member] | Amended BTC Transaction [Member] |  |  |  |  |  |  |
Digital Assets [Line Items] |  |  |  |  |  |  |
Number of crypto units | 5,000 |  |  |  |  |  |
Common Stock [Member] |  |  |  |  |  |  |
Digital Assets [Line Items] |  |  |  |  |  |  |
Price per share (in Dollars per share) | $ / shares |  |  | $ 1.02 |  |  |  |
Common Stock [Member] | BTC Contract [Member] |  |  |  |  |  |  |
Digital Assets [Line Items] |  |  |  |  |  |  |
Issuance of common stock (in Shares) | shares |  |  | 135,171,078 |  |  |  |

X
- Definition Represent the total consideration for acquisition. + References No definition available. + Details
Name: | nxtt_ConsiderationForAcquisitionUnits
Namespace Prefix: | nxtt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represent the per-share value of market price. + References No definition available. + Details
Name: | nxtt_MarketPricePerShare
Namespace Prefix: | nxtt_
Data Type: | dtr:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represent the per-share value of nominal exercise price per share. + References No definition available. + Details
Name: | nxtt_NominalExercisePricePerShare
Namespace Prefix: | nxtt_
Data Type: | dtr:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Prepayment percentage. + References No definition available. + Details
Name: | nxtt_PrepaymentPercentage
Namespace Prefix: | nxtt_
Data Type: | dtr:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of consideration transferred in asset acquisition. Includes, but is not limited to, cash, liability incurred by acquirer, and equity interest issued by acquirer. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 805 -SubTopic 50 -Name Accounting Standards Codification -Section 55 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479908/805-50-55-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 50 -Name Accounting Standards Codification -Section 25 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480060/805-50-25-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 50 -Name Accounting Standards Codification -Section 30 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480027/805-50-30-1 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 50 -Name Accounting Standards Codification -Section 30 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480027/805-50-30-2 + Details
Name: | us-gaap_AssetAcquisitionConsiderationTransferred
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-3 + Details
Name: | us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Cost of crypto asset. Excludes crypto asset held for platform user. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 60 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147476162/350-60-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 60 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147476162/350-60-50-1 + Details
Name: | us-gaap_CryptoAssetCost
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- 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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 60 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147476162/350-60-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 60 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147476162/350-60-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 60 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147476162/350-60-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 60 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147476162/350-60-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 60 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147476162/350-60-50-1 + Details
Name: | us-gaap_CryptoAssetHoldingLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of restricted and unrestricted crypto asset units held. Excludes crypto asset units held for platform user. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 60 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147476162/350-60-50-1 + Details
Name: | us-gaap_CryptoAssetNumberOfUnits
Namespace Prefix: | us-gaap_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of increase in crypto asset from purchase. Excludes crypto asset held for platform user. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 60 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147476162/350-60-50-3 + Details
Name: | us-gaap_CryptoAssetPurchase
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of decrease in crypto asset from sale. Excludes crypto asset held for platform user. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 60 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147476162/350-60-50-3 + Details
Name: | us-gaap_CryptoAssetSale
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of unrealized gain from remeasurement of crypto asset, classified as operating. Excludes crypto asset held for platform user. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 60 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147476162/350-60-50-3 + Details
Name: | us-gaap_CryptoAssetUnrealizedGainOperating
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of unrealized loss from remeasurement of crypto asset, classified as operating. Excludes crypto asset held for platform user. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 60 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147476162/350-60-50-3 + Details
Name: | us-gaap_CryptoAssetUnrealizedLossOperating
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483467/210-10-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(7)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 340 -SubTopic 10 -Name Accounting Standards Codification -Section 05 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482955/340-10-05-5 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 340 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483032/340-10-45-1 + Details
Name: | us-gaap_PrepaidExpenseCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Per share or per unit amount of equity securities issued. + References No definition available. + Details
Name: | us-gaap_SharesIssuedPricePerShare
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of shares 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 Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S45 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480100/505-10-S45-3 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480100/505-10-S45-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S50 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480657/210-10-S50-11 + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesIssuedForServices
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_WarrantsAndRightsOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_WarrantsAndRightsOutstandingTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | srt_CryptoAssetAxis=nxtt_BTCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CryptoAssetAxis=nxtt_DigitalAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CryptoAssetAxis=nxtt_BTCTradingContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CryptoAssetAxis=nxtt_BTCSellerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CryptoAssetAxis=srt_CryptoAssetOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CryptoAssetAxis=nxtt_BTCPurchaseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=nxtt_AmendedAndRestatedBTCTradingContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=nxtt_BTCTradingContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=nxtt_AmendedBTCTransactionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=us-gaap_WarrantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TypeOfArrangementAxis=nxtt_BTCContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |