Document And Entity Information Debt Instrument, Name [Domain] Note To Financial Statement Details Textual Significant Accounting Policies Note 2 - Revenue Recognition Income tax expense slng_PrepaymentOfCapitalAdditionalAndNearWorkingCapital Prepayment of Capital Additional and Near Working Capital The prepayment amount for the capital additions and near working capital. ecd_NonRule10b51ArrTrmntdFlag Non-Rule 10b5-1 Arrangement Terminated [Flag] Note 3 - Prepaid Expenses and Other Current Assets ecd_NonRule10b51ArrAdoptedFlag Non-Rule 10b5-1 Arrangement Adopted [Flag] Note 4 - Property, Plant and Equipment Distributions from equity investment in joint venture us-gaap_Depreciation Depreciation Trading Arrangements, by Individual [Table] Note 5 - Accrued Liabilities us-gaap_DebtInstrumentInterestRateEffectivePercentage Debt Instrument, Interest Rate, Effective Percentage Material Terms of Trading Arrangement [Text Block] Note 7 - Leases Related and Nonrelated Parties [Axis] Note 11 - Supplemental Cash Flow Information Note 2 - Revenue Recognition - Disaggregation of Revenue (Details) Rental [Member] Represents rental. Note 3 - Prepaid Expenses and Other Current Assets - Prepaid Expenses and Other Current Assets (Details) us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation Employee tax payments from stock-based withholding (in shares) Note 4 - Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details) Note 5 - Accrued Liabilities - Summary of Accrued Liabilities (Details) Investments in foreign joint ventures Product and Service, Other [Member] Note 7 - Leases - Schedule of Supplemental Cash Flow Information Related to Leases (Details) Note 11 - Supplemental Cash Flow Information - Summary of Supplemental Cash Flow Information (Details) Notes To Financial Statements Notes To Financial Statements [Abstract] Schedule of Long-Term Debt Instruments [Table] us-gaap_IncomeLossFromEquityMethodInvestments Income from equity investment in joint venture Income from equity investment in foreign joint venture Cash Flow, Supplemental Disclosures [Text Block] Liquefaction Plants and Systems [Member] Represents Liquefaction Plants and Systems. Debt Instrument [Axis] us-gaap_IncreaseDecreaseInAccountsReceivable Accounts receivable Prepaid Expenses and Other Current Assets [Text Block] The entire disclosure for prepaid expenses and other current assets. us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities Accounts payable and accrued liabilities Cash flows from operating activities: us-gaap_UnrealizedGainLossOnDerivatives Change in unrealized (gain) loss on natural gas derivatives Cash flows from investing activities: us-gaap_NetCashProvidedByUsedInOperatingActivities Net cash provided by operating activities Cash flows from financing activities: Business Description and Basis of Presentation [Text Block] us-gaap_NetCashProvidedByUsedInInvestingActivities Net cash used in investing activities us-gaap_InterestCostsCapitalized Interest Costs Capitalized us-gaap_PaymentsOfDebtIssuanceCosts Payment of debt issuance costs us-gaap_NetCashProvidedByUsedInFinancingActivities Net cash used in financing activities Counterparty Name [Axis] slng_CommonStockOwnershipPercentage Common Stock, Ownership Percentage Represents ownership percentage of common stock owned. Tmg [Member] Represents Tmg. Chart E&C [Member] Represents Chart E&C. Revenue From Contract With Customer, Deferred Revenue [Text Block] Represents the entire disclosure for deferred revenue and revenue from contracts with customers during the period. Accounting Policies [Abstract] Long-Lived Asset, Excluding Intangible Asset and Goodwill, Impairment and Disposal [Policy Text Block] us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block] us-gaap_RealizedAndUnrealizedGainLossInvestmentAndDerivativeOperatingAfterTax Realized and unrealized (gains) losses on natural gas derivatives, net Net equity income from foreign joint venture operations: slng_DebtInstrumentCovenantDebtonetworthRatio Debt Instrument, Covenant, Deb-to-Net-Worth Ratio Debt to net worth ratio under debt instrument. Ameri State Bank [Member] Represents Ameri State Bank. slng_DebtInstrumentCovenantDebtServiceCoverageRatioMaximum Debt Instrument, Covenant, Debt Service Coverage Ratio, Maximum Maximum of debt service coverage ratio under debt instrument. Leasehold Improvements [Member] Counterparty Name [Domain] Income Statement [Abstract] Loan Agreement [Member] Represents Loan Agreement. us-gaap_SharesOutstanding Balance (in shares) Balance (in shares) Net loss Net loss Net loss Preferred stock; $0.001 par value, 1,000,000 shares authorized, no shares issued and outstanding at June 30, 2026 and December 31, 2025 Adjustments to reconcile net loss to net cash provided by operating activities: us-gaap_Liabilities Total liabilities Amortization of debt issuance cost us-gaap_LiabilitiesAndStockholdersEquity Total liabilities and stockholders’ equity Operating expenses: Title and Position [Axis] us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets Prepaid expenses and other current assets Location, Statement of Financial Position, Balance [Axis] Stock-based compensation expense Selling, general and administrative expenses us-gaap_CostsAndExpenses Total operating expenses slng_OperatingLeaseEarlyTerminationFeeAndRentPayable Operating Lease, Early Termination Fee and Rent Payable Amount of early termination fee and rent payable under operating lease. slng_OperatingLeaseEarlyTerminationFeePayble Operating Lease, Early Termination Fee Payble Amount of early termination fee payable under operating lease. Lessee, Lease, Description [Table] Lease Contractual Term [Axis] ROU assets and operating lease obligations forgiven upon lease termination Right-of-Use Asset and Operating Lease Liability Forgiven Upon Lease Termination Amount of forgiven in right-of-use asset and operating lease liability upon lease termination. Lease Contractual Term [Domain] slng_DebtInstrumentCovenantMinimumCollateralSecurityFunding Debt Instrument, Covenant, Minimum Collateral Security Funding Represents minimum collateral security funding required under debt instrument. Changes in operating assets and liabilities: slng_DebtInstrumentDepositsInCashCollateralAccountCap Debt Instrument, Deposits in Cash Collateral Account, Cap Represents maximum amount of deposits in cash collateral account under debt instrument. Preferred Stock, Shares Issued (in shares) Accounting Standards Update and Change in Accounting Principle [Table] Huntington National Bank [Member] Represents Huntington National Bank. Preferred Stock, Shares Outstanding (in shares) slng_DebtInstrumentCovenantFixedChargeCoverageRatioMinimum Debt Instrument, Covenant, Fixed Charge Coverage Ratio, Minimum Minimum of fixed charge coverage ratio under debt instrument. Lessee, Operating Lease and Finance Leases [Text Block] The entire disclosure for operating lease and finance leases of lessee. Condensed Cash Flow Statement [Table] Preferred Stock, Shares Authorized (in shares) Second Modification Agreement [Member] Represents Second Modification Agreement. Cash, cash equivalents and restricted cash and cash equivalents, end of period, as presented on the Condensed Consolidated Balance Sheets: Impairment Preferred Stock, Par Value (in dollars per share) us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect Net increase in cash, cash equivalents and restricted cash and cash equivalents Related and Nonrelated Parties [Domain] slng_PolicyTable Effect of exchange rate changes on cash Related Party Transaction [Table] Related Party Transactions Disclosure [Text Block] Other receivables New Accounting Pronouncements, Policy [Policy Text Block] us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations Total cash and cash equivalents Cash, cash equivalents and restricted cash and cash equivalents, beginning of period Cash, cash equivalents and restricted cash and cash equivalents, end of period Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Statement [Table] Reclassification, Comparability Adjustment [Policy Text Block] Scenario, Plan [Member] Credit Facility [Axis] Prepaid insurance Operating cash flows from operating leases Credit Facility [Domain] Revolving Credit Facility [Member] us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 Debt Instrument, Basis Spread on Variable Rate us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability ROU assets acquired under operating leases Other income (expense): Statement of Financial Position [Abstract] us-gaap_NonoperatingIncomeExpense Total other income (expense) Liquefaction Assets [Member] Represents liquefaction assets. Financing cash flows from finance leases us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity Line of Credit Facility, Maximum Borrowing Capacity Line of Credit Facility, Lender [Domain] us-gaap_EquityMethodInvestmentOwnershipPercentage Equity Method Investment, Ownership Percentage us-gaap_IncomeTaxesPaidNet Income taxes paid (received) Time charter expense Time Charter Expense Amount of time charter expense. Lender Name [Axis] Product and Service [Domain] Product and Service [Axis] us-gaap_LineOfCredit Long-Term Line of Credit Ownership [Axis] Vehicles [Member] slng_CostOfRevenueTimeCharter Cost of Revenue, Time Charter The amount of time charter expense included in the aggregate cost of goods produced and sold and services rendered during the reporting period. Ownership [Domain] Non-cash time charter cancellation Amount of noncash expense for time charter cancellation. Revision of Prior Period [Domain] us-gaap_IncreaseDecreaseInDeferredRevenue Deferred revenue Revision of Prior Period [Axis] Document Type Document Information [Line Items] Document Quarterly Report us-gaap_AccountsPayableCurrentAndNoncurrent Accounts Payable Document Information [Table] us-gaap_OperatingLeaseExpense Operating Lease, Expense Entity Interactive Data Current Commitments and Contingencies Disclosure [Text Block] Document Transition Report Statement [Line Items] Net loss per common share: Common Stock, Shares Issued (in shares) Common Stock, Shares Outstanding (in shares) Deposits Common Stock, Shares Authorized (in shares) Cash settlements from natural gas derivatives, net The amount of cash settlements from derivatives. Weighted average number of common shares outstanding - Basic and diluted (in shares) Schedule of Accrued Liabilities [Table Text Block] Basic and diluted per common share (in dollars per share) Current portion of long-term notes payable Common stock; $0.001 par value, 37,500,000 shares authorized, 18,596,301 and 18,596,301 shares issued and outstanding at June 30, 2026 and December 31, 2025, respectively Long-term notes payable, net of current portion and debt issuance costs us-gaap_LongTermNotesPayable Title and Position [Domain] Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Office Equipment [Member] Accounts payable us-gaap_PolicyTextBlockAbstract Accounting Policies us-gaap_DisclosureTextBlockAbstract Notes to Financial Statements us-gaap_TableTextBlock Notes Tables Document Fiscal Period Focus Other taxes payable Document Fiscal Year Focus Investment, Name [Domain] us-gaap_ComprehensiveIncomeNetOfTax Total comprehensive loss Depreciation expense Restricted cash and cash equivalents Restricted cash and cash equivalents Amendment Flag Common Stock [Member] Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] us-gaap_AccruedRentCurrent Accrued Rent, Current Goodwill Accrued liabilities Total accrued liabilities Document Period End Date Building [Member] Property, Plant, and Equipment [Text Block] Nonrelated Party [Member] Long-Lived Asset, Class [Domain] us-gaap_FinanceLeaseInterestPaymentOnLiability Interest paid Legal Entity [Axis] Compensation and benefits Proceeds received from borrowings on notes payable Supplemental Cash Flow Information Related to Leases [Table Text Block] Tabular disclosure of supplemental cash flow information related to leases. Construction in Progress [Member] Entity File Number Long-term portion of operating lease obligations Entity Tax Identification Number us-gaap_OperatingLeaseLiability Operating Lease, Liability Other accrued liabilities Disaggregation of Revenue [Table Text Block] Disaggregation of Revenue [Table] Entity [Domain] Entity Central Index Key Entity Registrant Name Entity Current Reporting Status Entity Incorporation, State or Country Code Current Fiscal Year End Date Entity Filer Category Entity Shell Company Entity Emerging Growth Company us-gaap_ConstructionInProgressGross Construction in Progress, Gross Entity Small Business Offsetting Assets [Table] us-gaap_Revenues Revenues us-gaap_InterestExpenseDebt Interest Expense, Debt Loss Contingencies [Table] Entity Address, State or Province Statement of Stockholders' Equity [Abstract] Entity Address, City or Town Statement of Comprehensive Income [Abstract] us-gaap_InterestExpenseNonoperating Interest income, net Accumulated deficit Entity Address, Address Line One Statement of Cash Flows [Abstract] City Area Code us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet Other us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation Employee tax payments from stock-based withholding Local Phone Number Revenue from Contract with Customer [Text Block] Entity Address, Postal Zip Code us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments Loss from operations before equity income Other comprehensive income, net of tax Stockholders’ equity: Title of 12(b) Security Equity Components [Axis] Security Exchange Name Trading Symbol Class of Stock [Axis] Equity Component [Domain] Offsetting Liabilities [Table] Prime Rate [Member] Variable Rate [Domain] us-gaap_CapitalizedContractCostImpairmentLoss Capitalized Contract Cost, Impairment Loss AOCI Attributable to Parent [Member] Entity Common Stock, Shares Outstanding Additional Paid-in Capital [Member] Retained Earnings [Member] Other Board of Directors Chairman [Member] Affiliated Entity [Member] us-gaap_PropertyPlantAndEquipmentNet Property, plant and equipment, net Property, Plant and Equipment, Gross Cost us-gaap_CapitalExpendituresIncurredButNotYetPaid Acquisition of fixed assets included within accounts payable and accrued expenses Provision for credit losses Scenario [Axis] Scenario [Domain] Property, plant and equipment: Property, Plant, and Equipment [Table] Cost of revenues Common Stock, Par Value (in dollars per share) Investment, Name [Axis] us-gaap_GainLossOnTerminationOfLease Gain (Loss) on Termination of Lease Stock-based compensation Previously Reported [Member] Other expense, net Foreign currency translation adjustment, net of tax Long-Lived Asset, Class [Axis] Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] us-gaap_Assets Total assets Cash and cash equivalents Cash and cash equivalents Accounts Payable and Accrued Liabilities Disclosure [Text Block] Geographical [Domain] MEXICO Geographical [Axis] us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty Related Party Transaction, Purchases from Related Party Current portion of finance and operating lease obligations Present value of lessee's discounted obligation for lease payments from finance lease and operating lease, classified as current. us-gaap_AccountsReceivableNet Accounts Receivable, after Allowance for Credit Loss Right-of-use assets and other noncurrent assets Amount of right of use assets and noncurrent assets classified as other. Current liabilities: us-gaap_LiabilitiesCurrent Total current liabilities Deferred revenue, noncurrent Contract with Customer, Liability, Noncurrent us-gaap_DebtInstrumentVariableInterestRateTypeExtensibleEnumeration Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] us-gaap_ContractWithCustomerLiability Contract with Customer, Liability Deferred revenue, current Contract with Customer, Liability, Current Accounts receivable, net Depreciation us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation Employee tax payments from stock-based withholding Prepaid supplier expenses us-gaap_GainLossOnDispositionOfAssets1 Gain from disposal of fixed assets Proceeds from sale of fixed assets us-gaap_InterestPaidNet Interest paid us-gaap_GainLossOnSaleOfPropertyPlantEquipment Gain on disposal of assets us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment Less: accumulated depreciation Less accumulated depreciation Accumulated other comprehensive income Inventories, net Service [Member] slng_EquityIncomeForeignJointVentureNet Net equity income from foreign joint venture operations Net amount of equity income foreign joint venture. us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest Net loss before income tax expense slng_OperationsRelatedExpenseForeignJointVenture Foreign joint venture operating related expenses Amount of operations related expense for foreign joint venture. Additional paid-in capital Natural Gas, Gathering, Transportation, Marketing and Processing [Member] Basis of Presentation and Consolidation [Policy Text Block] Disclosure of accounting policy regarding basis of presentation and consolidation. Debt Disclosure [Text Block] us-gaap_StockholdersEquity Total stockholders’ equity Balance Balance Segment Reporting, Policy [Policy Text Block] slng_IncomeLossFromContinuingOperationsBeforeNonoperatingIncomeExpenseIncomeTaxesNoncontrollingInterest Loss from operations Amount of income loss from continuing operations before nonoperating income or expense, income taxes and noncontrolling interest. Bomay [Member] Represents Bomay. Use of Estimates, Policy [Policy Text Block] Prepaid expenses and other current assets Total prepaid expenses and other current assets slng_RepaymentsOfShorttermAndLongtermNotesPayable Payments on short- and long-term notes payable and finance leases The cash outflow to pay off short-term and long-term notes payable. us-gaap_PaymentsToAcquirePropertyPlantAndEquipment Acquisitions of fixed assets and other noncurrent assets Common stock issued from vesting of stock-based awards UNITED STATES Current assets: us-gaap_OperatingLeaseRightOfUseAsset Operating Lease, Right-of-Use Asset Time Charter Agreement Marine Bunkering Vessel [Member] Represents the lease for the Time Charter Agreement - Marine Bunkering Vessel. us-gaap_AssetsCurrent Total current assets Common stock issued from vesting of stock-based awards (in shares) ecd_Rule10b51ArrTrmntdFlag Rule 10b5-1 Arrangement Terminated [Flag] Property, Plant, and Equipment [Table Text Block] Revenues Total revenues LGN Remote Power Generation Contract at a Data Center [Member] Represents the lease entered for Remote Power Generation Contract at a Data Center. ecd_Rule10b51ArrAdoptedFlag Rule 10b5-1 Arrangement Adopted [Flag] us-gaap_DebtInstrumentFeeAmount Debt Instrument, Fee Amount Commitments and contingencies (Note 10)